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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG662441346

Certificate IGI LG662441346

Diamond specifications and retailer prices

From $301 USD
Save $3,199 USD (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $3,500 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 LG662441346 or 662441346. Listed at 27 retailers, with prices from $301 to $3,500 at Brilliant Earth, a $3,199 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 angle46.5°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662441346
Dimensions8.06 × 5.80 × 3.85 mm
L/W Ratio1.39
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
8.06 mm5.80 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662441346
Side View
Table 66.0%Crown 46.5°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 66.4%

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: $3,500 USD|Low: $239 USD|High: $4,260 USD|Avg: $1,299 USD|-17.8%
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
October 1, 2026
Retailer 20$360 USD
Retailer 13$474 USD
Retailer 3$530 USD
Retailer 6$635 USD
Retailer 4$653 USD
Retailer 19$693 USD
Retailer 14$728 USD
Retailer 8$847 USD
Retailer 10$933 USD
Retailer 18$956 USD
Retailer 15$1,046 USD
Retailer 9$1,484 USD
Retailer 12$1,511 USD
Retailer 7$1,542 USD
Retailer 5$1,581 USD
Retailer 16$1,670 USD
Retailer 2$1,709 USD
Retailer 17$2,520 USD
Retailer 11$2,670 USD
Brilliant Earth$3,500 USD

41 data points across 20 retailers

27 retailers$301 USD to $3,500 USD

A
Cheapest Retailer
-
$301 USD
A
Retailer 2
-
$349 USD
View
A
Retailer 3
-
$360 USD
View
A
Retailer 4
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$368 USD
View
A
Retailer 5
-
$474 USD
View
A
Retailer 6
-
$530 USD
View
A
Retailer 7
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$576 USD
HK$4,500 HKD
View
Price last confirmed 27 days ago
A
Retailer 8
-
$635 USD
View
A
Retailer 9
-
$653 USD
€622 EUR
View
A
Retailer 10
-
$693 USD
ZAR 11,195 ZAR
View
A
Retailer 11
-
$730 USD
£575 GBP
View
A
Retailer 12
-
$847 USD
View
A
Retailer 13
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$933 USD
View
A
Retailer 14
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$956 USD
A$1,470 AUD
View
A
Retailer 15
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$1,046 USD
View
B+
Retailer 16
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$1,324 USD
View
B+
Retailer 17
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$1,484 USD
View
B+
Retailer 18
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$1,511 USD
View
B+
Retailer 19
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$1,542 USD
View
B+
Retailer 20
-
$1,581 USD
SGD 2,137 SGD
View
B+
Retailer 21
-
$1,670 USD
£1,315 GBP
View
B+
Retailer 22
-
$1,709 USD
A$2,629 AUD
View
B
Retailer 23
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$2,495 USD
View
B
Retailer 24
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$2,520 USD
View
B
Retailer 25
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$2,520 USD
View
B
Retailer 26
-
$2,670 USD
View
Most Expensive
B
Brilliant Earth
13057280Y · Sep 29
$3,500 USD
View
26 more retailers have this diamond
Prices start from $301 USDSave up to $3,199 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
$301 USD