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Round|Lab Grown|IGI

1.57ct G SI1 Round Lab Grown Diamond

ID • G/SI1

Diamond specifications and retailer prices

From $762 SGD
$596 USD
As of November 1, 2026
Save $1,036 SGD (58%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,798 SGD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 1.57ct lab-grown round diamond

This 1.57ct 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. Listed at 2 retailers as of October 30, 2026, with prices from $762 to $1,798, a $1,036 spread on the same certified stone. Diamond Exchange Canada lists it at $1,798. 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

1.57
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.51 × 7.57 × 4.55 mm
L/W Ratio1.01
Top View
7.51 mm7.57 mm1.57 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth

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: $1,798 SGD|Low: $762 SGD|High: $1,798 SGD|Avg: $1,280 SGD
Diamond Exchange Canada
Retailer 2
October 17, 2026
Retailer 2$762 SGD
Diamond Exchange Canada$1,798 SGD

2 data points across 2 retailers

2 retailers$762 SGD to $1,798 SGD

B+
Cheapest Retailer
-
$762 SGD
$596 USD
Most Expensive
C
Diamond Exchange Canada
1960631756 · Oct 30
$1,798 SGD
CA$1,953 CAD
View
1 more retailer has this diamond
Prices start from $762 SGDSave up to $1,036 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+
1.57ct Round
$762 SGD