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Round|Lab Grown|IGI

8.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG588335479

Shape and cutting style on the report: Round brilliant

Certificate IGI LG588335479

Diamond specifications and retailer prices

From $1,893 SGD
$1,480 USD
As of November 2, 2026
Save $6,024 SGD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,916 SGD at Brilliant Earth · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG588335479 or 588335479. Listed at 13 retailers as of November 2, 2026, with prices from $1,893 to $7,916, a $6,024 spread on the same certified stone. Brilliant Earth lists it at $7,916. 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

8.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588335479
Dimensions13.05 × 12.98 × 8.12 mm
L/W Ratio1.01
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
13.05 mm12.98 mm8.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588335479
Side View
Table 58.0%Crown 35.6°Girdle: MediumPavilion 41°Culet: NoneDepth 62.3%

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: Nov 2
Current: $7,916 SGD|Low: $1,668 SGD|High: $11,062 SGD|Avg: $3,625 SGD|-28.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9$1,668 SGD
Retailer 5$1,893 SGD
Retailer 7$2,370 SGD
Retailer 3$2,409 SGD
Retailer 6$2,654 SGD
Retailer 2$2,828 SGD
Retailer 10$3,287 SGD
Retailer 8$4,851 SGD
Retailer 4$5,360 SGD
Brilliant Earth$7,916 SGD

37 data points across 10 retailers

13 retailers$1,893 SGD to $7,916 SGD

Retailer 1
-
$1,437 SGD
$1,124 USD
Price last confirmed 40 days ago
Retailer 2
-
$1,564 SGD
$1,223 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$1,645 SGD
$1,286 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$1,893 SGD
$1,480 USD
View
B+
Retailer 5
-
$2,370 SGD
$1,853 USD
View
B+
Retailer 6
-
$2,409 SGD
£1,483 GBP
View
B+
Retailer 7
-
$2,654 SGD
$2,075 USD
View
B+
Retailer 8
-
$2,828 SGD
€2,106 EUR
View
Retailer 9
-
$3,127 SGD
$2,445 USD
View
Price last confirmed 35 days ago
B+
Retailer 10
-
$3,287 SGD
$2,570 USD
View
B
Retailer 11
-
$4,851 SGD
$3,793 USD
View
B
Retailer 12
-
$5,360 SGD
£3,300 GBP
View
Most Expensive
B
Brilliant Earth
7646058A · Nov 2
$7,916 SGD
$6,190 USD
View
12 more retailers have this diamond
Prices start from $1,893 SGDSave up to $6,024 SGD

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
$1,893 SGD