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Round|Lab Grown|IGI

1.83ct J I1 Round Lab Grown Diamond

ID • J/I1 • IGI LG490190993

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490190993

Diamond specifications and retailer prices

From $1,272 SGD
$995 USD
As of November 1, 2026
Save $3,759 SGD (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,031 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.83ct lab-grown round diamond

This 1.83ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI LG490190993 or 490190993. Listed at 8 retailers as of October 29, 2026, with prices from $1,272 to $5,031, a $3,759 spread on the same certified stone. MOH London lists it at $5,031. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
J
Colour
I1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490190993
Dimensions7.97 × 7.99 × 4.74 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
7.97 mm7.99 mm1.83 ctJ / I1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490190993
Side View
Table 57.5%Crown 33°GirdlePavilion 40.2°Culet: NoneDepth 59.4%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $5,031 SGD|Low: $1,221 SGD|High: $5,066 SGD|Avg: $2,249 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 3$1,272 SGD
Retailer 6$1,385 SGD
Retailer 4$1,475 SGD
Retailer 8$1,475 SGD
Retailer 9$2,167 SGD
Retailer 5$2,357 SGD
Retailer 7$2,766 SGD
Retailer 2$3,181 SGD
MOH London$5,031 SGD

13 data points across 9 retailers

8 retailers$1,272 SGD to $5,031 SGD

B+
Cheapest Retailer
-
$1,272 SGD
$995 USD
B+
Retailer 2
-
$1,385 SGD
$1,083 USD
View
B+
Retailer 3
-
$1,475 SGD
$1,154 USD
View
Retailer 4
-
$1,475 SGD
$1,154 USD
View
Price last confirmed 20 days ago
B
Retailer 5
-
$2,357 SGD
$1,844 USD
View
B
Retailer 6
-
$2,766 SGD
$2,164 USD
View
B
Retailer 7
-
$3,181 SGD
$2,488 USD
View
Most Expensive
B
MOH London
LG490190993 · Oct 29
$5,031 SGD
£3,099 GBP
View
7 more retailers have this diamond
Prices start from $1,272 SGDSave up to $3,759 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+
1.83ct Round
$1,272 SGD