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1.65ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG499105227

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499105227

Diamond specifications and retailer prices

From $1,176 SGD
$920 USD
As of October 30, 2026
Save $4,333 SGD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,509 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.65ct lab-grown round diamond

This 1.65ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499105227 or 499105227. Listed at 10 retailers as of October 29, 2026, with prices from $1,176 to $5,509, a $4,333 spread on the same certified stone. MOH London lists it at $5,509. 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

1.65
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105227
Dimensions7.56 × 7.53 × 4.68 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.56 mm7.53 mm1.65 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105227
Side View
Table 55.5%Crown 35.7°Girdle: MediumPavilion 40.2°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
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: $5,509 SGD|Low: $1,176 SGD|High: $5,553 SGD|Avg: $2,810 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2$1,176 SGD
Retailer 4$1,647 SGD
Retailer 7$1,870 SGD
Retailer 6$2,435 SGD
Retailer 3$2,709 SGD
Retailer 5$3,361 SGD
Retailer 8$3,814 SGD
MOH London$5,509 SGD

14 data points across 8 retailers

10 retailers$1,176 SGD to $5,509 SGD

A
Cheapest Retailer
-
$1,176 SGD
$920 USD
B+
Retailer 2
-
$1,470 SGD
$1,150 USD
View
A
Retailer 3
-
$1,599 SGD
$1,251 USD
View
B+
Retailer 4
-
$1,647 SGD
$1,288 USD
View
Final sale: no returns
Retailer 5
-
$1,705 SGD
$1,334 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,705 SGD
$1,334 USD
View
B
Retailer 7
-
$2,709 SGD
$2,119 USD
View
B
Retailer 8
-
$3,197 SGD
$2,501 USD
View
B
Retailer 9
-
$3,361 SGD
$2,629 USD
View
Most Expensive
B
MOH London
LG499105227 · Oct 29
$5,509 SGD
£3,393 GBP
View
9 more retailers have this diamond
Prices start from $1,176 SGDSave up to $4,333 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
1.65ct Round
$1,176 SGD