CaratHunter
Plans
Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG631466945

Shape and cutting style on the report: Round brilliant

Certificate IGI LG631466945

Diamond specifications and retailer prices

From $251 SGD
$196 USD
As of November 1, 2026
Save $1,204 SGD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,455 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG631466945 or 631466945. Listed at 13 retailers as of November 1, 2026, with prices from $251 to $1,455, a $1,204 spread on the same certified stone. MOH London lists it at $1,455. 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

1.51
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631466945
Dimensions7.46 × 7.40 × 4.44 mm
L/W Ratio1.01
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
7.46 mm7.40 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631466945
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.8%

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: Nov 1
Current: $1,455 SGD|Low: $251 SGD|High: $1,463 SGD|Avg: $673 SGD|+2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 3$251 SGD
Retailer 12$291 SGD
Retailer 11$311 SGD
Retailer 4$316 SGD
Retailer 7$542 SGD
Retailer 2$554 SGD
Retailer 5$568 SGD
Retailer 6$736 SGD
Retailer 9$920 SGD
Retailer 10$1,001 SGD
Retailer 8$1,004 SGD
MOH London$1,455 SGD

44 data points across 12 retailers

13 retailers$251 SGD to $1,455 SGD

A
Cheapest Retailer
-
$251 SGD
$196 USD
A
Retailer 2
-
$291 SGD
$228 USD
View
A
Retailer 3
-
$311 SGD
$243 USD
View
A
Retailer 4
-
$316 SGD
$247 USD
View
Final sale: no returns
Retailer 5
-
$350 SGD
$274 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$542 SGD
$424 USD
View
A
Retailer 7
-
$554 SGD
£341 GBP
View
A
Retailer 8
-
$568 SGD
£350 GBP
View
B+
Retailer 9
-
$736 SGD
$576 USD
View
B+
Retailer 10
-
$920 SGD
$720 USD
View
B+
Retailer 11
-
$1,001 SGD
$783 USD
View
B+
Retailer 12
-
$1,004 SGD
$785 USD
View
Most Expensive
B
MOH London
LG631466945 · Nov 1
$1,455 SGD
£896 GBP
View
12 more retailers have this diamond
Prices start from $251 SGDSave up to $1,204 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
1.51ct Round
$251 SGD