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Radiant|Lab Grown|IGI

6.51ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG564374962

Shape and cutting style on the report: Cut cornered square modified brilliant

Certificate IGI LG564374962

Diamond specifications and retailer prices

From €1,012 EUR
$1,131 USD
As of October 31, 2026
Save €2,971 EUR (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,983 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.51ct lab-grown radiant diamond

This 6.51ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG564374962 or 564374962. Listed at 11 retailers as of October 31, 2026, with prices from €1,012 to €3,983, a €2,971 spread on the same certified stone. Brilliant Earth lists it at €3,983. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

6.51
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.7°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG564374962
Dimensions10.42 × 10.18 × 6.44 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.42 mm10.18 mm6.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG564374962
Side View
Table 68.5%Crown 46.7°Girdle: Slightly ThickPavilion 32°Culet: NoneDepth 63.3%

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: €3,983 EUR|Low: €1,012 EUR|High: €4,108 EUR|Avg: €2,311 EUR|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 10€1,012 EUR
Retailer 8€1,049 EUR
Retailer 9€1,477 EUR
Retailer 5€1,616 EUR
Retailer 4€1,670 EUR
Retailer 7€1,675 EUR
Retailer 6€2,059 EUR
Retailer 11€3,226 EUR
Retailer 2€3,559 EUR
Retailer 3€3,659 EUR
Brilliant Earth€3,983 EUR

21 data points across 11 retailers

11 retailers€1,012 EUR to €3,983 EUR

A
Cheapest Retailer
-
€1,012 EUR
$1,131 USD
Final sale: no returns
Retailer 2
-
€1,049 EUR
$1,172 USD
View
Price last confirmed 20 days ago
B+
Retailer 3
-
€1,477 EUR
$1,650 USD
View
B+
Retailer 4
-
€1,616 EUR
$1,805 USD
View
B+
Retailer 5
-
€1,670 EUR
View
B+
Retailer 6
-
€1,675 EUR
$1,871 USD
View
B+
Retailer 7
-
€2,059 EUR
$2,300 USD
View
B
Retailer 8
-
€3,226 EUR
$3,605 USD
View
B
Retailer 9
-
€3,559 EUR
£3,131 GBP
View
B
Retailer 10
-
€3,659 EUR
$4,088 USD
View
Most Expensive
B
Brilliant Earth
7639285A · Oct 31
€3,983 EUR
$4,450 USD
View
10 more retailers have this diamond
Prices start from €1,012 EURSave up to €2,971 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
6.51ct Radiant
€1,012 EUR