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Cushion|Lab Grown|IGI

10.21ct H VS2 Cushion Lab Grown Diamond

ID • H/VS2 • IGI LG601305247

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG601305247

Diamond specifications and retailer prices

From £1,410 GBP
As of October 30, 2026
Save £4,110 GBP (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,135 GBP at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 10.21ct lab-grown cushion diamond

This 10.21ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG601305247 or 601305247. Listed at 13 retailers as of October 30, 2026, with a 292% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

10.21
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG601305247
Dimensions12.04 × 11.76 × 7.72 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.04 mm11.76 mm10.21 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG601305247
Side View
Table 59.0%Crown 36.5°Girdle: STK-VTKPavilion 30.8°Culet: NoneDepth 65.6%

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: £7,135 GBP|Low: £1,085 GBP|High: £7,135 GBP|Avg: £3,437 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 8£1,410 GBP
Retailer 15£1,520 GBP
Retailer 11£1,575 GBP
Retailer 9£1,702 GBP
Retailer 14£1,981 GBP
Retailer 10£2,228 GBP
Retailer 2£2,345 GBP
Retailer 5£2,677 GBP
Retailer 3£3,264 GBP
Retailer 13£3,856 GBP
Retailer 12£4,172 GBP
Retailer 4£4,527 GBP
Retailer 6£5,520 GBP
Retailer 7£6,945 GBP
Brilliant Earth£7,135 GBP

31 data points across 15 retailers

13 retailers£1,410 GBP to £5,520 GBP

A
Cheapest Retailer
-
£1,410 GBP
A
Retailer 2
-
£1,520 GBP
$2,037 USD
View
Final sale: no returns
Retailer 3
-
£1,575 GBP
$2,110 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
£1,702 GBP
$2,280 USD
View
A
Retailer 5
-
£1,981 GBP
$2,654 USD
View
B+
Retailer 6
-
£2,228 GBP
$2,985 USD
View
A
Retailer 7
-
£2,345 GBP
€2,993 EUR
View
A
Retailer 8
-
£3,264 GBP
View
B+
Retailer 9
-
£3,856 GBP
$5,166 USD
View
B+
Retailer 10
-
£4,172 GBP
$5,590 USD
View
B+
Retailer 11
-
£4,527 GBP
$6,065 USD
View
B+
Retailer 12
-
£5,520 GBP
$7,396 USD
View
Most Expensive
Brilliant Earth
10792751A · Sep 28
£7,135 GBP
$9,560 USD
View
Price last confirmed 33 days ago
12 more retailers have this diamond
Prices start from £1,410 GBPSave up to £4,110 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
10.21ct Cushion
£1,410 GBP