After our team of valuers cast their expert eyes over them, Dutch auction house AAG consigned the pieces. Next week, the diamonds will be up for auction.

A cushion-cut diamond weighing 1.36 carat With GIA certificate: Fancy Light Yellow, Natural Even, IF, Numbered GIA 6202884809, 5 November 2015 Estimate: £8 - 10 500 (€ 9 000 - 12 000) A cushion-cut diamond weighing 1.36 carat
With GIA certificate: Fancy Light Yellow, Natural Even, IF, Numbered GIA 6202884809, 5 November 2015
Estimate: £8 000 - 10 500 (€ 9 000 - 12 000)

The three diamonds were each valued separately. Picture above is an unmounted fancy intense yellow radiant-cut diamond which weighs 1.36 carat. This piece was valued by Barnebys team to be worth in the region of £. The below cushion-cut diamond weighing 1.39 carat was also valued to be worth around the same.

The unmounted diamonds sent in by a private Belgium collector to Barnebys Valuation Service are amongst the AAG catalog's most valuable lots.

A cushion-cut diamond weighing 1.39 carat With GIA certificate: Fancy Light Yellow, Natural Even, IF, numbered GIA 2173378445, 18 November 2015 Estimate: $10 500-14 000 (€ 9 000 - 12 000) A cushion-cut diamond weighing 1.39 carat
With GIA certificate: Fancy Light Yellow, Natural Even, IF, numbered GIA 2173378445, 18 November 2015
Estimate: £8 000 - 10 500 (€ 9 000 - 12 000)

A rectangular diamond weighing 1.15 carat With GIA certificate: Cut-Cornered Rectangular Modified Brilliant, Natural, Fancy Intense Yellow, Even, VSI, numbered GIA 2155133729, 20 Juni 2015 Estimate:£5 300 - 7 000 (€ 6 000 - 8 000) A rectangular diamond weighing 1.15 carat
With GIA certificate: Cut-Cornered Rectangular Modified Brilliant, Natural, Fancy Intense Yellow, Even, VSI, numbered GIA 2155133729, 20 Juni 2015
Estimate:£5 300 - 7 000 (€ 6 000 - 8 000)

The final of the three diamonds, weighing 1.15 carat, is pictured above.

AAG's final sale of the year will take place on 18th December, 2017. Check out the full catalogue here.

Think you have something to appraise? Send it in to Barnebys Valuation Service here.

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