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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG700512156

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

Certificate IGI LG700512156

Diamond specifications and retailer prices

From $424 SGD
$332 USD
As of October 30, 2026
Save $2,867 SGD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,292 SGD at Rare Carat · As of October 28, 2026
View at Rare Carat

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 LG700512156 or 700512156. Listed at 24 retailers as of October 28, 2026, with prices from $424 to $3,292, a $2,867 spread on the same certified stone. Rare Carat lists it at $3,292. 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 angle39.2°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700512156
Dimensions8.59 × 5.74 × 3.70 mm
L/W Ratio1.50
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
8.59 mm5.74 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700512156
Side View
Table 63.0%Crown 39.2°Girdle: MediumPavilion 33°Culet: NoneDepth 64.5%

Caratlytics Score

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A+
Exceptional
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: $3,292 SGD|Low: $408 SGD|High: $3,305 SGD|Avg: $1,308 SGD|-0.4%
Rare Carat
Retailer 2
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Retailer 24
October 31, 2026
Retailer 3$424 SGD
Retailer 22$492 SGD
Retailer 20$506 SGD
Retailer 24$527 SGD
Retailer 14$605 SGD
Retailer 13$665 SGD
Retailer 7$741 SGD
Retailer 23$851 SGD
Retailer 11$858 SGD
Retailer 19$905 SGD
Retailer 2$943 SGD
Retailer 12$1,192 SGD
Retailer 18$1,227 SGD
Retailer 8$1,396 SGD
Retailer 5$1,544 SGD
Retailer 4$1,693 SGD
Retailer 15$1,748 SGD
Retailer 17$1,760 SGD
Retailer 16$1,761 SGD
Retailer 10$1,989 SGD
Retailer 9$2,065 SGD
Retailer 21$2,112 SGD
Retailer 6$2,185 SGD
Rare Carat$3,292 SGD

32 data points across 24 retailers

24 retailers$424 SGD to $3,292 SGD

A+
Cheapest Retailer
-
$424 SGD
$332 USD
A
Retailer 2
-
$492 SGD
$385 USD
View
A
Retailer 3
-
$506 SGD
$396 USD
View
Final sale: no returns
A
Retailer 4
-
$527 SGD
$412 USD
View
A
Retailer 5
-
$605 SGD
HK$3,700 HKD
View
A
Retailer 6
-
$665 SGD
$520 USD
View
A
Retailer 7
-
$741 SGD
$580 USD
View
Retailer 8
-
$851 SGD
€634 EUR
View
Price last confirmed 8 days ago
A
Retailer 9
-
$858 SGD
$671 USD
View
A
Retailer 10
-
$905 SGD
ZAR 11,431 ZAR
View
A
Retailer 11
-
$943 SGD
£581 GBP
View
A
Retailer 12
-
$1,192 SGD
$933 USD
View
A
Retailer 13
-
$1,227 SGD
A$1,477 AUD
View
A
Retailer 14
-
$1,396 SGD
$1,092 USD
View
B+
Retailer 15
-
$1,544 SGD
$1,208 USD
View
B+
Retailer 16
-
$1,693 SGD
$1,324 USD
View
B+
Retailer 17
-
$1,748 SGD
$1,368 USD
View
B+
Retailer 18
-
$1,760 SGD
$1,377 USD
View
B+
Retailer 19
-
$1,761 SGD
View
B+
Retailer 20
-
$1,989 SGD
$1,556 USD
View
B+
Retailer 21
-
$2,065 SGD
$1,615 USD
View
B+
Retailer 22
-
$2,112 SGD
£1,301 GBP
View
Retailer 23
-
$2,185 SGD
A$2,629 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
Rare Carat
2186-12-614 · Oct 28
$3,292 SGD
$2,575 USD
View
23 more retailers have this diamond
Prices start from $424 SGDSave up to $2,867 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
$424 SGD