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Round|Lab Grown|IGI

1.00ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG492122413

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492122413

Diamond specifications and retailer prices

From $636 SGD
$496 USD
As of October 29, 2026
Save $2,672 SGD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,308 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492122413 or 492122413. Listed at 13 retailers as of October 29, 2026, with prices from $636 to $3,308, a $2,672 spread on the same certified stone. MOH London lists it at $3,308. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
J
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492122413
Dimensions6.50 × 6.49 × 3.89 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.50 mm6.49 mm1.00 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492122413
Side View
Table 58.0%Crown 34.3°Girdle: THN-MEDPavilion 40.4°CuletDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,308 SGD|Low: $610 SGD|High: $3,330 SGD|Avg: $1,300 SGD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 7$636 SGD
Retailer 8$710 SGD
Retailer 3$711 SGD
Retailer 10$788 SGD
Retailer 9$936 SGD
Retailer 5$968 SGD
Retailer 11$1,227 SGD
Retailer 4$1,355 SGD
Retailer 2$1,628 SGD
Retailer 6$2,119 SGD
MOH London$3,308 SGD

28 data points across 11 retailers

13 retailers$636 SGD to $3,308 SGD

A
Cheapest Retailer
-
$636 SGD
$496 USD
A
Retailer 2
-
$710 SGD
$554 USD
View
Final sale: no returns
A
Retailer 3
-
$711 SGD
$555 USD
View
A
Retailer 4
-
$788 SGD
$615 USD
View
Retailer 5
-
$788 SGD
$615 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$936 SGD
$730 USD
View
A
Retailer 7
-
$968 SGD
$755 USD
View
B+
Retailer 8
-
$1,227 SGD
$957 USD
View
B+
Retailer 9
-
$1,355 SGD
ZAR 17,074 ZAR
View
B+
Retailer 10
-
$1,628 SGD
£1,000 GBP
View
B
Retailer 11
-
$2,073 SGD
$1,617 USD
View
B
Retailer 12
-
$2,119 SGD
$1,653 USD
View
Most Expensive
B
MOH London
LG492122413 · Oct 29
$3,308 SGD
£2,032 GBP
View
12 more retailers have this diamond
Prices start from $636 SGDSave up to $2,672 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
1.00ct Round
$636 SGD