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Cushion|Lab Grown|IGI

10.38ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG846635127

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846635127

Diamond specifications and retailer prices

From £1,146 GBP
$1,535 USD
As of November 1, 2026
Save £4,452 GBP (80%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £5,597 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.38ct lab-grown cushion diamond

This 10.38ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846635127 or 846635127. Listed at 3 retailers as of October 31, 2026, with prices from £1,146 to £5,597, a £4,452 spread on the same certified stone. Brilliant Earth lists it at £5,597. 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

10.38
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846635127
Dimensions15.26 × 11.15 × 7.52 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.26 mm11.15 mm10.38 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846635127
Side View
Table 63.0%Crown 36.2°Girdle: MED-THKPavilion 35.2°Culet: NoneDepth 67.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £5,597 GBP|Low: £1,146 GBP|High: £5,597 GBP|Avg: £3,049 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3£1,146 GBP
Retailer 2£1,698 GBP
Brilliant Earth£5,597 GBP

17 data points across 3 retailers

3 retailers£1,146 GBP to £5,597 GBP

A
Cheapest Retailer
-
£1,146 GBP
$1,535 USD
Final sale: no returns
A
Retailer 2
-
£1,698 GBP
View
Most Expensive
B+
Brilliant Earth
22136303A · Oct 31
£5,597 GBP
$7,500 USD
View
2 more retailers have this diamond
Prices start from £1,146 GBPSave up to £4,452 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
10.38ct Cushion
£1,146 GBP