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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 €1,889 EUR
$2,110 USD
As of October 31, 2026
Save €16,112 EUR (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €18,000 EUR 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 €1,889 to €18,000, a €16,112 spread on the same certified stone. Brilliant Earth lists it at €18,000. 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
Color
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: €18,000 EUR|Low: €1,889 EUR|High: €18,555 EUR|Avg: €5,166 EUR|-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
October 31, 2026
Retailer 11€1,889 EUR
Retailer 2€2,108 EUR
Retailer 5€2,679 EUR
Retailer 6€3,028 EUR
Retailer 12€3,065 EUR
Retailer 9€3,212 EUR
Retailer 7€3,426 EUR
Retailer 8€3,630 EUR
Retailer 3€5,270 EUR
Retailer 10€6,236 EUR
Retailer 4€6,851 EUR
Brilliant Earth€18,000 EUR

42 data points across 12 retailers

13 retailers€1,889 EUR to €18,000 EUR

A
Cheapest Retailer
-
€1,889 EUR
$2,110 USD
Final sale: no returns
A
Retailer 2
-
€2,108 EUR
$2,355 USD
View
A
Retailer 3
-
€2,679 EUR
£2,357 GBP
View
A
Retailer 4
-
€3,028 EUR
ZAR 54,649 ZAR
View
A
Retailer 5
-
€3,065 EUR
$3,424 USD
View
A
Retailer 6
-
€3,212 EUR
$3,588 USD
View
A
Retailer 7
-
€3,426 EUR
View
Retailer 8
-
€3,630 EUR
A$6,239 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
€5,270 EUR
$5,888 USD
View
Retailer 10
-
€5,689 EUR
$6,356 USD
View
Price last confirmed 111 days ago
B+
Retailer 11
-
€6,236 EUR
$6,967 USD
View
B+
Retailer 12
-
€6,851 EUR
$7,654 USD
View
Most Expensive
B
Brilliant Earth
21027698A · Oct 31
€18,000 EUR
$20,110 USD
View
12 more retailers have this diamond
Prices start from €1,889 EURSave up to €16,112 EUR

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
€1,889 EUR