CaratHunter
Plans
Round|Lab Grown|IGI

10.51ct E VVS2 Round Lab Grown Diamond

EX • E/VVS2 • IGI LG816685597

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816685597

Diamond specifications and retailer prices

From £4,434 GBP
As of November 1, 2026
Save £16,993 GBP (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £21,427 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.51ct lab-grown round diamond

This 10.51ct lab-grown round sits in the over five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816685597 or 816685597. Listed at 8 retailers as of October 31, 2026, with prices from £4,434 to £21,427, a £16,993 spread on the same certified stone. Brilliant Earth lists it at £21,427. 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

10.51
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816685597
Dimensions14.15 × 14.11 × 8.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.15 mm14.11 mm10.51 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816685597
Side View
Table 61.0%Crown 33.2°Girdle: Slightly ThickPavilion 40.3°Culet: NoneDepth 59.6%

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: Nov 1
Current: £21,427 GBP|Low: £3,314 GBP|High: £22,084 GBP|Avg: £7,598 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9£3,314 GBP
Retailer 2£4,434 GBP
Retailer 5£4,470 GBP
Retailer 8£4,722 GBP
Retailer 4£4,770 GBP
Retailer 3£5,255 GBP
Retailer 10£6,234 GBP
Retailer 7£7,766 GBP
Retailer 6£12,031 GBP
Brilliant Earth£21,427 GBP

11 data points across 10 retailers

8 retailers£4,434 GBP to £21,427 GBP

A
Cheapest Retailer
-
£4,434 GBP
A
Retailer 2
-
£4,470 GBP
$5,989 USD
View
B+
Retailer 3
-
£4,770 GBP
$6,391 USD
View
B+
Retailer 4
-
£5,255 GBP
ZAR 113,740 ZAR
View
Retailer 5
-
£6,234 GBP
$8,353 USD
View
Price last confirmed 104 days ago
B
Retailer 6
-
£7,766 GBP
$10,405 USD
View
B
Retailer 7
-
£12,031 GBP
$16,121 USD
View
Most Expensive
B
Brilliant Earth
21525691Y · Oct 31
£21,427 GBP
$28,710 USD
View
7 more retailers have this diamond
Prices start from £4,434 GBPSave up to £16,993 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
10.51ct Round
£4,434 GBP