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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG729589868

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

Certificate IGI LG729589868

Diamond specifications and retailer prices

From $385 SGD
$301 USD
As of October 30, 2026
Save $3,374 SGD (90%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $3,758 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 LG729589868 or 729589868. Listed at 27 retailers as of October 30, 2026, with prices from $385 to $3,758, a $3,374 spread on the same certified stone. Brilliant Earth lists it at $3,758. 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°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729589868
Dimensions8.70 × 5.86 × 3.63 mm
L/W Ratio1.48
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
8.70 mm5.86 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729589868
Side View
Table 62.0%Crown 39°Girdle: MED-STKPavilion 33.3°Culet: NoneDepth 61.9%

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: $3,758 SGD|Low: $369 SGD|High: $4,334 SGD|Avg: $1,511 SGD|-13.3%
Brilliant Earth
Retailer 2
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Retailer 26
October 31, 2026
Retailer 4$385 SGD
Retailer 25$446 SGD
Retailer 6$460 SGD
Retailer 3$477 SGD
Retailer 20$575 SGD
Retailer 24$704 SGD
Retailer 9$741 SGD
Retailer 15$812 SGD
Retailer 2$855 SGD
Retailer 23$905 SGD
Retailer 13$943 SGD
Retailer 16$1,029 SGD
Retailer 10$1,083 SGD
Retailer 17$1,192 SGD
Retailer 22$1,227 SGD
Retailer 7$1,465 SGD
Retailer 5$1,693 SGD
Retailer 12$1,833 SGD
Retailer 18$1,898 SGD
Retailer 11$1,932 SGD
Retailer 19$2,022 SGD
Retailer 21$2,120 SGD
Retailer 8$2,194 SGD
Retailer 26$3,145 SGD
Retailer 14$3,413 SGD
Brilliant Earth$3,758 SGD

34 data points across 26 retailers

27 retailers$385 SGD to $3,758 SGD

A
Cheapest Retailer
-
$385 SGD
$301 USD
A
Retailer 2
-
$446 SGD
$349 USD
View
A
Retailer 3
-
$460 SGD
$360 USD
View
Final sale: no returns
A
Retailer 4
-
$477 SGD
$373 USD
View
A
Retailer 5
-
$575 SGD
$450 USD
View
A
Retailer 6
-
$704 SGD
HK$4,300 HKD
View
A
Retailer 7
-
$741 SGD
$580 USD
View
A
Retailer 8
-
$812 SGD
$635 USD
View
A
Retailer 9
-
$855 SGD
€637 EUR
View
A
Retailer 10
-
$905 SGD
ZAR 11,431 ZAR
View
A
Retailer 11
-
$943 SGD
£581 GBP
View
A
Retailer 12
-
$1,029 SGD
A$1,238 AUD
View
A
Retailer 13
-
$1,083 SGD
$847 USD
View
A
Retailer 14
-
$1,192 SGD
$933 USD
View
A
Retailer 15
-
$1,227 SGD
A$1,477 AUD
View
B+
Retailer 16
-
$1,465 SGD
$1,146 USD
View
B+
Retailer 17
-
$1,693 SGD
$1,324 USD
View
B+
Retailer 18
-
$1,833 SGD
$1,434 USD
View
B+
Retailer 19
-
$1,898 SGD
$1,484 USD
View
B+
Retailer 20
-
$1,932 SGD
$1,511 USD
View
B+
Retailer 21
-
$2,022 SGD
View
B+
Retailer 22
-
$2,120 SGD
£1,306 GBP
View
Retailer 23
-
$2,194 SGD
A$2,640 AUD
View
Price last confirmed 23 days ago
B
Retailer 24
-
$3,145 SGD
$2,460 USD
View
Retailer 25
-
$3,171 SGD
$2,480 USD
View
Price last confirmed 103 days ago
B
Retailer 26
-
$3,413 SGD
$2,670 USD
View
Most Expensive
B
Brilliant Earth
16223276Y · Oct 31
$3,758 SGD
$2,940 USD
View
26 more retailers have this diamond
Prices start from $385 SGDSave up to $3,374 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
$385 SGD