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Round|Lab Grown|IGI

10.51ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG665415925

Shape and cutting style on the report: Round brilliant

Certificate IGI LG665415925

Diamond specifications and retailer prices

From $3,004 AUD
$2,110 USD
As of October 31, 2026
Save $25,625 AUD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $28,629 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665415925 or 665415925. Listed at 13 retailers as of October 31, 2026, with prices from $3,004 to $28,629, a $25,625 spread on the same certified stone. Brilliant Earth lists it at $28,629. 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
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665415925
Dimensions13.91 × 13.98 × 8.66 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
13.91 mm13.98 mm10.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665415925
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.0%

Caratlytics Score

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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: $28,629 AUD|Low: $3,004 AUD|High: $29,511 AUD|Avg: $8,323 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
November 1, 2026
Retailer 11$3,004 AUD
Retailer 6$3,353 AUD
Retailer 5$4,225 AUD
Retailer 7$4,816 AUD
Retailer 12$4,874 AUD
Retailer 9$5,108 AUD
Retailer 8$5,448 AUD
Retailer 2$5,764 AUD
Retailer 3$8,382 AUD
Retailer 10$9,918 AUD
Retailer 4$10,896 AUD
Brilliant Earth$28,629 AUD

43 data points across 12 retailers

13 retailers$3,004 AUD to $28,629 AUD

A
Cheapest Retailer
-
$3,004 AUD
$2,110 USD
Final sale: no returns
A
Retailer 2
-
$3,353 AUD
$2,355 USD
View
A
Retailer 3
-
$4,225 AUD
£2,337 GBP
View
A
Retailer 4
-
$4,816 AUD
ZAR 54,649 ZAR
View
A
Retailer 5
-
$4,874 AUD
$3,424 USD
View
A
Retailer 6
-
$5,108 AUD
$3,588 USD
View
A
Retailer 7
-
$5,448 AUD
€3,645 EUR
View
A
Retailer 8
-
$5,764 AUD
View
B+
Retailer 9
-
$8,382 AUD
$5,888 USD
View
Retailer 10
-
$9,048 AUD
$6,356 USD
View
Price last confirmed 112 days ago
B+
Retailer 11
-
$9,918 AUD
$6,967 USD
View
B+
Retailer 12
-
$10,896 AUD
$7,654 USD
View
Most Expensive
B
Brilliant Earth
21027698A · Oct 31
$28,629 AUD
$20,110 USD
View
12 more retailers have this diamond
Prices start from $3,004 AUDSave up to $25,625 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
$3,004 AUD