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Round|Lab Grown|IGI

8.54ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG812628788

Shape and cutting style on the report: Round brilliant

Certificate IGI LG812628788

Diamond specifications and retailer prices

From $2,710 SGD
$2,119 USD
As of November 2, 2026
Save $4,496 SGD (62%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,712 SGD at Brilliant Earth · As of October 6, 2026
View at Brilliant Earth

About this 8.54ct lab-grown round diamond

This 8.54ct 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 LG812628788 or 812628788. Listed at 9 retailers as of October 31, 2026, with a 166% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

8.54
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812628788
Dimensions13.24 × 13.27 × 8.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.24 mm13.27 mm8.54 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812628788
Side View
Table 55.0%Crown 33.2°Girdle: MediumPavilion 40.3°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $7,712 SGD|Low: $2,526 SGD|High: $7,942 SGD|Avg: $4,750 SGD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$2,710 SGD
Retailer 2$2,880 SGD
Retailer 9$3,115 SGD
Retailer 7$3,237 SGD
Retailer 10$3,307 SGD
Retailer 5$4,993 SGD
Retailer 3$5,852 SGD
Retailer 4$6,689 SGD
Retailer 8$7,206 SGD
Brilliant Earth$7,712 SGD

40 data points across 10 retailers

9 retailers$2,710 SGD to $7,206 SGD

B+
Cheapest Retailer
-
$2,710 SGD
$2,119 USD
B+
Retailer 2
-
$2,880 SGD
£1,773 GBP
View
B+
Retailer 3
-
$3,237 SGD
$2,531 USD
View
Retailer 4
-
$3,307 SGD
$2,586 USD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$4,993 SGD
$3,904 USD
View
B
Retailer 6
-
$5,852 SGD
£3,603 GBP
View
B
Retailer 7
-
$6,689 SGD
$5,230 USD
View
B
Retailer 8
-
$7,206 SGD
$5,634 USD
View
Most Expensive
Brilliant Earth
20729502A · Oct 6
$7,712 SGD
$6,030 USD
View
Price last confirmed 27 days ago
8 more retailers have this diamond
Prices start from $2,710 SGDSave up to $4,496 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.

B+
8.54ct Round
$2,710 SGD