Radiant|Lab Grown|IGI

8.51ct I VS2 Radiant Lab Grown Diamond

ID • I/VS2 • IGI LG675570709

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

Certificate IGI LG675570709

Diamond specifications and retailer prices

From €1,276 EUR
$1,425 USD
As of October 31, 2026
Save €2,734 EUR (68%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,010 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 8.51ct lab-grown radiant diamond

This 8.51ct lab-grown radiant sits in the over five carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG675570709 or 675570709. Listed at 16 retailers as of October 31, 2026, with prices from €1,276 to €4,010, a €2,734 spread on the same certified stone. Brilliant Earth lists it at €4,010. 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

8.51
Carat
I
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675570709
Dimensions14.26 × 10.13 × 6.62 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.26 mm10.13 mm8.51 ctI / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675570709
Side View
Table 67.0%Crown 47.1°Girdle: ThickPavilion 35°Culet: NoneDepth 65.4%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: €4,010 EUR|Low: €800 EUR|High: €7,823 EUR|Avg: €2,758 EUR|-48.7%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 7€1,058 EUR
Retailer 5€1,096 EUR
Retailer 15€1,276 EUR
Retailer 17€1,295 EUR
Retailer 11€1,330 EUR
Retailer 10€1,779 EUR
Retailer 3€1,942 EUR
Retailer 12€2,031 EUR
Retailer 8€2,681 EUR
Retailer 6€3,028 EUR
Retailer 9€3,248 EUR
Retailer 4€3,291 EUR
Retailer 16€3,748 EUR
Retailer 2€3,791 EUR
Retailer 13€3,797 EUR
Retailer 14€3,905 EUR
Brilliant Earth€4,010 EUR

24 data points across 17 retailers

16 retailers€1,276 EUR to €4,010 EUR

Retailer 1
-
€945 EUR
$1,056 USD
Price last confirmed 32 days ago
Retailer 2
-
€1,028 EUR
$1,148 USD
View
Price last confirmed 34 days ago
Retailer 3
-
€1,081 EUR
$1,208 USD
View
Price last confirmed 35 days ago
A
Retailer 4
-
€1,276 EUR
$1,425 USD
View
A
Retailer 5
-
€1,295 EUR
HK$11,300 HKD
View
A
Retailer 6
-
€1,330 EUR
£1,170 GBP
View
B+
Retailer 7
-
€1,779 EUR
$1,988 USD
View
B+
Retailer 8
-
€2,031 EUR
$2,269 USD
View
Retailer 9
-
€2,054 EUR
$2,295 USD
View
Price last confirmed 31 days ago
Retailer 10
-
€2,291 EUR
$2,559 USD
View
Price last confirmed 31 days ago
B
Retailer 11
-
€3,291 EUR
$3,677 USD
View
B
Retailer 12
-
€3,748 EUR
SGD 5,659 SGD
View
B
Retailer 13
-
€3,791 EUR
£3,335 GBP
View
B
Retailer 14
-
€3,797 EUR
$4,242 USD
View
B
Retailer 15
-
€3,905 EUR
$4,363 USD
View
Most Expensive
B
Brilliant Earth
22350218A · Oct 31
€4,010 EUR
$4,480 USD
View
15 more retailers have this diamond
Prices start from €1,276 EURSave up to €2,734 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
8.51ct Radiant
€1,276 EUR