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Radiant|Lab Grown|IGI

6.51ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG617400068

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

Certificate IGI LG617400068

Diamond specifications and retailer prices

From €738 EUR
$824 USD
As of October 30, 2026
Save €4,311 EUR (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €5,048 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG617400068 or 617400068. Listed at 21 retailers as of October 30, 2026, with prices from €738 to €5,048, a €4,311 spread on the same certified stone. Brilliant Earth lists it at €5,048. 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

6.51
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617400068
Dimensions13.04 × 9.21 × 6.25 mm
L/W Ratio1.42
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
13.04 mm9.21 mm6.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617400068
Side View
Table 65.0%Crown 46.1°Girdle: MediumPavilion 35.4°Culet: NoneDepth 67.9%

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 30
Current: €5,048 EUR|Low: €729 EUR|High: €5,048 EUR|Avg: €1,780 EUR
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 15
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Retailer 21
November 1, 2026
Retailer 4€738 EUR
Retailer 19€802 EUR
Retailer 9€826 EUR
Retailer 6€856 EUR
Retailer 21€856 EUR
Retailer 3€921 EUR
Retailer 18€1,011 EUR
Retailer 13€1,303 EUR
Retailer 7€1,310 EUR
Retailer 10€1,378 EUR
Retailer 15€1,407 EUR
Retailer 16€1,585 EUR
Retailer 17€1,655 EUR
Retailer 20€1,967 EUR
Retailer 8€2,293 EUR
Retailer 5€2,405 EUR
Retailer 12€2,676 EUR
Retailer 11€2,718 EUR
Retailer 14€2,962 EUR
Retailer 2€3,207 EUR
Brilliant Earth€5,048 EUR

36 data points across 21 retailers

21 retailers€738 EUR to €5,048 EUR

A
Cheapest Retailer
-
€738 EUR
$824 USD
A
Retailer 2
-
€802 EUR
$896 USD
View
A
Retailer 3
-
€826 EUR
$923 USD
View
Final sale: no returns
A
Retailer 4
-
€856 EUR
$956 USD
View
Retailer 5
-
€856 EUR
$956 USD
View
Price last confirmed 15 days ago
Retailer 6
-
€921 EUR
£810 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
€1,011 EUR
$1,130 USD
View
A
Retailer 8
-
€1,303 EUR
£1,146 GBP
View
A
Retailer 9
-
€1,310 EUR
$1,463 USD
View
B+
Retailer 10
-
€1,378 EUR
$1,539 USD
View
A
Retailer 11
-
€1,407 EUR
View
A
Retailer 12
-
€1,585 EUR
A$2,725 AUD
View
A
Retailer 13
-
€1,655 EUR
ZAR 29,874 ZAR
View
B+
Retailer 14
-
€1,967 EUR
$2,197 USD
View
B+
Retailer 15
-
€2,293 EUR
$2,562 USD
View
B+
Retailer 16
-
€2,405 EUR
$2,687 USD
View
B+
Retailer 17
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€2,676 EUR
$2,990 USD
View
Retailer 18
-
€2,718 EUR
$3,036 USD
View
Price last confirmed 21 days ago
B+
Retailer 19
-
€2,962 EUR
$3,309 USD
View
B+
Retailer 20
-
€3,207 EUR
£2,821 GBP
View
Most Expensive
B
Brilliant Earth
9065431A · Oct 31
€5,048 EUR
$5,640 USD
View
20 more retailers have this diamond
Prices start from €738 EURSave up to €4,311 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
€738 EUR