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Radiant|Lab Grown|IGI

1.54ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG492125287

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG492125287

Diamond specifications and retailer prices

From $229 SGD
$179 USD
As of October 27, 2026
Save $2,862 SGD (93%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,091 SGD at B2C Jewels · As of October 29, 2026
View at B2C Jewels

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492125287 or 492125287. Listed at 13 retailers as of October 27, 2026, with prices from $229 to $3,091, a $2,862 spread on the same certified stone. B2C Jewels lists it at $3,091. 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

1.54
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle28.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492125287
Dimensions10.37 × 7.13 × 4.39 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.37 mm7.13 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492125287
Side View
Table 61.5%Crown 38°Girdle: Slightly ThickPavilion 28.5°Culet: NoneDepth 65.4%

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 27
Current: $3,091 SGD|Low: $220 SGD|High: $3,091 SGD|Avg: $1,094 SGD
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6$229 SGD
Retailer 11$257 SGD
Retailer 10$266 SGD
Retailer 2$404 SGD
Retailer 8$502 SGD
Retailer 5$964 SGD
Retailer 9$1,006 SGD
Retailer 7$1,381 SGD
Retailer 4$1,468 SGD
Retailer 3$2,199 SGD
B2C Jewels$3,091 SGD

36 data points across 11 retailers

13 retailers$229 SGD to $3,091 SGD

A
Cheapest Retailer
-
$229 SGD
$179 USD
A
Retailer 2
-
$257 SGD
$201 USD
View
Final sale: no returns
A
Retailer 3
-
$266 SGD
$208 USD
View
A
Retailer 4
-
$404 SGD
£249 GBP
View
B+
Retailer 5
-
$502 SGD
$393 USD
View
B
Retailer 6
-
$964 SGD
$754 USD
View
B+
Retailer 7
-
$1,006 SGD
$787 USD
View
B+
Retailer 8
-
$1,007 SGD
$788 USD
View
B
Retailer 9
-
$1,381 SGD
$1,080 USD
View
B
Retailer 10
-
$1,468 SGD
£904 GBP
View
B
Retailer 11
-
$2,184 SGD
£1,345 GBP
View
B
Retailer 12
-
$2,199 SGD
$1,720 USD
View
Most Expensive
B
B2C Jewels
20034071 · Oct 29
$3,091 SGD
$2,418 USD
View
12 more retailers have this diamond
Prices start from $229 SGDSave up to $2,862 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
1.54ct Radiant
$229 SGD