CaratHunter
Plans
Cushion|Lab Grown|IGI

10.23ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG728582016

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG728582016

Diamond specifications and retailer prices

From £3,760 GBP
As of October 30, 2026
Save £16,315 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £20,075 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 10.23ct lab-grown cushion diamond

This 10.23ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG728582016 or 728582016. Listed at 12 retailers as of October 30, 2026, with prices from £3,760 to £20,075, a £16,315 spread on the same certified stone. Adiamor lists it at £20,075. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

10.23
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.5°
Pavilion angle32.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728582016
Dimensions12.07 × 12.03 × 7.77 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.07 mm12.03 mm10.23 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728582016
Side View
Table 68.0%Crown 50.5°Girdle: MED-STKPavilion 32.7°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £7,892 GBP|Low: £3,748 GBP|High: £10,609 GBP|Avg: £5,766 GBP|-10.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 3£3,760 GBP
Retailer 10£4,055 GBP
Retailer 7£4,201 GBP
Retailer 9£4,220 GBP
Retailer 4£5,352 GBP
Retailer 2£5,937 GBP
Retailer 8£6,495 GBP
Retailer 5£6,502 GBP
Retailer 1£7,892 GBP
Retailer 6£7,983 GBP

42 data points across 10 retailers

12 retailers£3,760 GBP to £20,075 GBP

A
Cheapest Retailer
-
£3,760 GBP
A
Retailer 2
-
£4,055 GBP
$5,433 USD
View
Final sale: no returns
Retailer 3
-
£4,201 GBP
$5,629 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
£4,220 GBP
$5,655 USD
View
B+
Retailer 5
-
£5,352 GBP
View
B+
Retailer 6
-
£5,937 GBP
View
B+
Retailer 7
-
£6,495 GBP
$8,702 USD
View
B+
Retailer 8
-
£6,502 GBP
ZAR 140,752 ZAR
View
B
Retailer 9
-
£7,892 GBP
$10,574 USD
View
Retailer 10
-
£7,983 GBP
A$16,456 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
£15,060 GBP
$20,179 USD
View
Most Expensive
B
Adiamor
D-77326447 · Oct 31
£20,075 GBP
$26,898 USD
View
11 more retailers have this diamond
Prices start from £3,760 GBPSave up to £16,315 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
10.23ct Cushion
£3,760 GBP