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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG613379389

Certificate IGI LG613379389

Diamond specifications and retailer prices

From $332 USD
Save $3,988 USD (92%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,320 USD at Brilliant Earth
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 24 retailers, with prices from $332 to $4,320 at Brilliant Earth, a $3,988 spread on the same certified stone. 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
Color
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 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $4,320 USD|Low: $264 USD|High: $4,680 USD|Avg: $1,241 USD|-7.7%
Brilliant Earth
Retailer 2
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Retailer 21
October 1, 2026
Retailer 17$371 USD
Retailer 15$474 USD
Retailer 13$474 USD
Retailer 16$520 USD
Retailer 4$653 USD
Retailer 6$671 USD
Retailer 3$693 USD
Retailer 18$728 USD
Retailer 10$933 USD
Retailer 21$956 USD
Retailer 8$1,092 USD
Retailer 19$1,107 USD
Retailer 9$1,349 USD
Retailer 12$1,368 USD
Retailer 5$1,378 USD
Retailer 14$1,554 USD
Retailer 11$1,615 USD
Retailer 20$1,670 USD
Retailer 7$1,702 USD
Retailer 2$1,709 USD
Brilliant Earth$4,320 USD

41 data points across 21 retailers

24 retailers$332 USD to $4,320 USD

A
Cheapest Retailer
-
$332 USD
A
Retailer 2
-
$371 USD
View
A
Retailer 3
-
$385 USD
View
A
Retailer 4
-
$406 USD
View
A
Retailer 5
-
$474 USD
HK$3,700 HKD
View
A
Retailer 6
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$474 USD
View
A
Retailer 7
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$520 USD
View
A
Retailer 8
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$653 USD
€622 EUR
View
A
Retailer 9
-
$671 USD
View
A
Retailer 10
-
$693 USD
ZAR 11,195 ZAR
View
A
Retailer 11
-
$730 USD
£575 GBP
View
A
Retailer 12
-
$933 USD
View
A
Retailer 13
-
$956 USD
A$1,470 AUD
View
A
Retailer 14
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$1,092 USD
View
A
Retailer 15
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$1,107 USD
View
B+
Retailer 16
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$1,324 USD
View
B+
Retailer 17
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$1,368 USD
View
B+
Retailer 18
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$1,377 USD
View
B+
Retailer 19
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$1,378 USD
SGD 1,862 SGD
View
B+
Retailer 20
-
$1,615 USD
View
B+
Retailer 21
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$1,670 USD
£1,315 GBP
View
B+
Retailer 22
-
$1,702 USD
View
B+
Retailer 23
-
$1,709 USD
A$2,629 AUD
View
Most Expensive
B
Brilliant Earth
8881666A · Oct 1
$4,320 USD
View
23 more retailers have this diamond
Prices start from $332 USDSave up to $3,988 USD

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.

A
1.57ct Radiant
$332 USD