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Round|Lab Grown|IGI

1.57ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG442038198

Shape and cutting style on the report: Round brilliant

Certificate IGI LG442038198

Diamond specifications and retailer prices

From $378 SGD
$296 USD
As of November 1, 2026
Save $1,697 SGD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,362 SGD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

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 LG442038198 or 442038198. Listed at 15 retailers as of November 1, 2026, with a 448% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Crown angle34°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442038198
Dimensions7.57 × 7.51 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
7.57 mm7.51 mm1.57 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442038198
Side View
Table 59.0%Crown 34°Girdle: MediumPavilion 41°Culet: NoneDepth 60.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $3,362 SGD|Low: $237 SGD|High: $3,362 SGD|Avg: $1,043 SGD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 6$237 SGD
Retailer 9$378 SGD
Retailer 12$469 SGD
Retailer 13$469 SGD
Retailer 10$510 SGD
Retailer 11$671 SGD
Retailer 14$770 SGD
Retailer 7$923 SGD
Retailer 4$1,077 SGD
Retailer 8$1,441 SGD
Retailer 5$1,686 SGD
Retailer 3$1,871 SGD
Retailer 2$2,075 SGD
Do Amore Diamonds$3,362 SGD

29 data points across 14 retailers

15 retailers$378 SGD to $2,075 SGD

Retailer 1
-
$344 SGD
$269 USD
Price last confirmed 26 days ago
Retailer 2
-
$367 SGD
$287 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
$378 SGD
$296 USD
View
A
Retailer 4
-
$469 SGD
$367 USD
View
A
Retailer 5
-
$469 SGD
$367 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$510 SGD
$399 USD
View
B+
Retailer 7
-
$671 SGD
$525 USD
View
B+
Retailer 8
-
$770 SGD
$602 USD
View
B+
Retailer 9
-
$923 SGD
£569 GBP
View
B
Retailer 10
-
$1,077 SGD
$843 USD
View
B
Retailer 11
-
$1,441 SGD
$1,127 USD
View
B
Retailer 12
-
$1,686 SGD
$1,319 USD
View
B
Retailer 13
-
$1,871 SGD
$1,463 USD
View
B
Retailer 14
-
$2,075 SGD
£1,278 GBP
View
Most Expensive
Do Amore Diamonds
27-E64C8D2CC · Nov 1
$3,362 SGD
$2,630 USD
View
Price under review
14 more retailers have this diamond
Prices start from $378 SGDSave up to $1,697 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
1.57ct Round
$378 SGD