CaratHunter
Plans
Round|Lab Grown|IGI

8.51ct H VS2 Round Lab Grown Diamond

ID • H/VS2 • IGI LG610311857

Shape and cutting style on the report: Round brilliant

Certificate IGI LG610311857

Diamond specifications and retailer prices

From $1,958 USD
As of October 30, 2026
Save $3,892 USD (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,850 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 8.51ct lab-grown round diamond

This 8.51ct lab-grown round sits in the over five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG610311857 or 610311857. Listed at 15 retailers as of October 29, 2026, with prices from $1,958 to $5,850, a $3,892 spread on the same certified stone. Brilliant Earth lists it at $5,850. 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
H
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG610311857
Dimensions13.24 × 13.21 × 7.95 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
13.24 mm13.21 mm8.51 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG610311857
Side View
Table 58.0%Crown 33.9°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.1%

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 30
Current: $5,850 USD|Low: $1,158 USD|High: $6,030 USD|Avg: $2,987 USD|-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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 5$1,158 USD
Retailer 4$1,260 USD
Retailer 7$1,325 USD
Retailer 17$1,418 USD
Retailer 13$1,958 USD
Retailer 12$2,205 USD
Retailer 16$2,248 USD
Retailer 11$2,250 USD
Retailer 10$2,347 USD
Retailer 6$2,518 USD
Retailer 14$2,717 USD
Retailer 15$3,943 USD
Retailer 2$4,581 USD
Retailer 8$4,633 USD
Retailer 9$4,741 USD
Retailer 3$4,972 USD
Brilliant Earth$5,850 USD

28 data points across 17 retailers

15 retailers$1,958 USD to $5,850 USD

Retailer 1
-
$1,158 USD
Price last confirmed 37 days ago
Retailer 2
-
$1,260 USD
View
Price last confirmed 37 days ago
Retailer 3
-
$1,325 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$1,418 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$1,958 USD
View
Retailer 6
-
$2,205 USD
£1,736 GBP
View
Price last confirmed 13 days ago
B+
Retailer 7
-
$2,248 USD
View
B+
Retailer 8
-
$2,250 USD
View
B+
Retailer 9
-
$2,347 USD
€2,235 EUR
View
Retailer 10
-
$2,518 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
$2,717 USD
View
B
Retailer 12
-
$3,943 USD
View
B
Retailer 13
-
$4,581 USD
£3,607 GBP
View
Retailer 14
-
$4,972 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
8644958A · Oct 29
$5,850 USD
View
14 more retailers have this diamond
Prices start from $1,958 USDSave up to $3,892 USD

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 Round
$1,958 USD