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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG613379389

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

Certificate IGI LG613379389

Diamond specifications and retailer prices

From $408 SGD
$319 USD
As of October 30, 2026
Save $3,363 SGD (89%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $3,771 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.57ct lab-grown radiant diamond

This 1.57ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG613379389 or 613379389. Listed at 29 retailers as of October 30, 2026, with prices from $408 to $3,771, a $3,363 spread on the same certified stone. Brilliant Earth lists it at $3,771. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG613379389
Dimensions8.14 × 5.83 × 3.95 mm
L/W Ratio1.40
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
8.14 mm5.83 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG613379389
Side View
Table 65.0%Crown 35°Girdle: MediumPavilion 34.6°Culet: NoneDepth 67.8%

Caratlytics Score

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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 30
Current: $3,771 SGD|Low: $408 SGD|High: $4,487 SGD|Avg: $1,393 SGD|-16.0%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 3$408 SGD
Retailer 13$485 SGD
Retailer 10$589 SGD
Retailer 4$713 SGD
Retailer 19$716 SGD
Retailer 2$821 SGD
Retailer 8$837 SGD
Retailer 18$868 SGD
Retailer 15$902 SGD
Retailer 9$1,139 SGD
Retailer 17$1,177 SGD
Retailer 5$1,392 SGD
Retailer 21$1,482 SGD
Retailer 11$1,682 SGD
Retailer 14$1,682 SGD
Retailer 12$1,695 SGD
Retailer 7$1,943 SGD
Retailer 6$2,010 SGD
Retailer 20$2,028 SGD
Retailer 16$2,148 SGD
Brilliant Earth$3,771 SGD

34 data points across 21 retailers

29 retailers$408 SGD to $3,771 SGD

A
Cheapest Retailer
-
$408 SGD
$319 USD
Retailer 2
-
$408 SGD
$319 USD
View
Price last confirmed 23 days ago
Retailer 3
-
$424 SGD
$332 USD
View
Price last confirmed 31 days ago
A
Retailer 4
-
$485 SGD
$379 USD
View
Final sale: no returns
Retailer 5
-
$492 SGD
$385 USD
View
Price last confirmed 34 days ago
Retailer 6
-
$505 SGD
$395 USD
View
Price last confirmed 28 days ago
Retailer 7
-
$519 SGD
$406 USD
View
Price last confirmed 33 days ago
A
Retailer 8
-
$589 SGD
HK$3,600 HKD
View
A
Retailer 9
-
$713 SGD
$558 USD
View
A
Retailer 10
-
$716 SGD
$560 USD
View
A
Retailer 11
-
$821 SGD
€612 EUR
View
A
Retailer 12
-
$837 SGD
$655 USD
View
A
Retailer 13
-
$868 SGD
ZAR 10,972 ZAR
View
A
Retailer 14
-
$902 SGD
£555 GBP
View
A
Retailer 15
-
$1,139 SGD
$891 USD
View
A
Retailer 16
-
$1,177 SGD
A$1,417 AUD
View
B+
Retailer 17
-
$1,392 SGD
$1,089 USD
View
B+
Retailer 18
-
$1,482 SGD
$1,159 USD
View
Retailer 19
-
$1,625 SGD
$1,271 USD
View
Price last confirmed 21 days ago
B+
Retailer 20
-
$1,625 SGD
$1,271 USD
View
B+
Retailer 21
-
$1,682 SGD
$1,316 USD
View
B+
Retailer 22
-
$1,682 SGD
$1,316 USD
View
Retailer 23
-
$1,693 SGD
$1,324 USD
View
Price last confirmed 31 days ago
B+
Retailer 24
-
$1,695 SGD
View
B+
Retailer 25
-
$1,943 SGD
$1,520 USD
View
B+
Retailer 26
-
$2,010 SGD
$1,573 USD
View
B+
Retailer 27
-
$2,028 SGD
£1,249 GBP
View
B+
Retailer 28
-
$2,148 SGD
A$2,585 AUD
View
Most Expensive
B
Brilliant Earth
8881666A · Oct 31
$3,771 SGD
$2,950 USD
View
28 more retailers have this diamond
Prices start from $408 SGDSave up to $3,363 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 Radiant
$408 SGD