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1.21ct J VVS1 Round Lab Grown Diamond

ID • J/VVS1 • IGI LG549283635

Shape and cutting style on the report: Round brilliant

Certificate IGI LG549283635

Diamond specifications and retailer prices

From $505 SGD
$395 USD
As of October 30, 2026
Save $833 SGD (62%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,338 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG549283635 or 549283635. Listed at 4 retailers as of October 29, 2026, with prices from $505 to $1,338, a $833 spread on the same certified stone. MOH London lists it at $1,338. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
J
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG549283635
Dimensions6.78 × 6.82 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
6.78 mm6.82 mm1.21 ctJ / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG549283635
Side View
Table 55.5%Crown 35.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.3%

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: $1,338 SGD|Low: $384 SGD|High: $1,534 SGD|Avg: $1,111 SGD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 3$505 SGD
Retailer 4$876 SGD
Retailer 2$985 SGD
Retailer 7$1,036 SGD
MOH London$1,338 SGD
Retailer 5$1,534 SGD
Retailer 6$1,534 SGD

12 data points across 7 retailers

4 retailers$505 SGD to $1,338 SGD

A
Cheapest Retailer
-
$505 SGD
$395 USD
B+
Retailer 2
-
$876 SGD
$685 USD
View
B+
Retailer 3
-
$985 SGD
$770 USD
View
Most Expensive
B+
MOH London
LG549283635 · Oct 29
$1,338 SGD
£824 GBP
View
3 more retailers have this diamond
Prices start from $505 SGDSave up to $833 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
1.21ct Round
$505 SGD