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Round|Lab Grown|IGI

10.51ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG665415952

Shape and cutting style on the report: Round brilliant

Certificate IGI LG665415952

Diamond specifications and retailer prices

From $3,079 AUD
$2,163 USD
As of October 31, 2026
Save $20,681 AUD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $23,760 AUD 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665415952 or 665415952. Listed at 12 retailers as of October 31, 2026, with prices from $3,079 to $23,760, a $20,681 spread on the same certified stone. Brilliant Earth lists it at $23,760. 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
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665415952
Dimensions14.19 × 14.30 × 8.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.19 mm14.30 mm10.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665415952
Side View
Table 59.0%Crown 32.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 59.2%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $23,760 AUD|Low: $2,861 AUD|High: $24,500 AUD|Avg: $7,485 AUD|-3.0%
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
November 1, 2026
Retailer 9$2,861 AUD
Retailer 11$3,079 AUD
Retailer 6$3,431 AUD
Retailer 7$4,938 AUD
Retailer 13$4,994 AUD
Retailer 5$5,011 AUD
Retailer 10$5,237 AUD
Retailer 8$5,589 AUD
Retailer 2$5,910 AUD
Retailer 4$9,222 AUD
Retailer 12$9,424 AUD
Retailer 3$11,168 AUD
Brilliant Earth$23,760 AUD

39 data points across 13 retailers

12 retailers$3,079 AUD to $23,760 AUD

Retailer 1
-
$2,861 AUD
£1,583 GBP
Price last confirmed 15 days ago
A
Retailer 2
-
$3,079 AUD
$2,163 USD
View
Final sale: no returns
A
Retailer 3
-
$3,431 AUD
$2,410 USD
View
A
Retailer 4
-
$4,938 AUD
ZAR 56,034 ZAR
View
A
Retailer 5
-
$4,994 AUD
$3,508 USD
View
A
Retailer 6
-
$5,237 AUD
$3,679 USD
View
A
Retailer 7
-
$5,589 AUD
€3,739 EUR
View
A
Retailer 8
-
$5,910 AUD
View
Retailer 9
-
$9,222 AUD
$6,478 USD
View
Price last confirmed 112 days ago
B+
Retailer 10
-
$9,424 AUD
$6,620 USD
View
B
Retailer 11
-
$11,168 AUD
$7,845 USD
View
Most Expensive
B
Brilliant Earth
21027069A · Oct 31
$23,760 AUD
$16,690 USD
View
11 more retailers have this diamond
Prices start from $3,079 AUDSave up to $20,681 AUD

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
$3,079 AUD