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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG700512156

Certificate IGI LG700512156

Diamond specifications and retailer prices

From $353 USD
Save $2,267 USD (87%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,620 USD at Rare Carat
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 25 retailers, with prices from $353 to $2,620 at Rare Carat, a $2,267 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 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

How it works →
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: $2,620 USD|Low: $281 USD|High: $2,620 USD|Avg: $1,077 USD|+5.7%
Rare Carat
Retailer 2
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Retailer 24
October 1, 2026
Retailer 20$353 USD
Retailer 5$410 USD
Retailer 2$426 USD
Retailer 8$432 USD
Retailer 18$506 USD
Retailer 21$512 USD
Retailer 22$555 USD
Retailer 10$695 USD
Retailer 7$695 USD
Retailer 6$737 USD
Retailer 23$778 USD
Retailer 15$1,002 USD
Retailer 4$1,017 USD
Retailer 12$1,100 USD
Retailer 24$1,177 USD
Retailer 19$1,408 USD
Retailer 17$1,449 USD
Retailer 14$1,449 USD
Retailer 9$1,471 USD
Retailer 16$1,682 USD
Retailer 13$1,723 USD
Retailer 3$1,731 USD
Retailer 11$1,795 USD
Rare Carat$2,620 USD

40 data points across 24 retailers

25 retailers$353 USD to $2,620 USD

A
Cheapest Retailer
-
$353 USD
A
Retailer 2
-
$410 USD
View
A
Retailer 3
-
$426 USD
View
A
Retailer 4
-
$432 USD
View
A
Retailer 5
-
$506 USD
View
A
Retailer 6
-
$512 USD
HK$4,000 HKD
View
A
Retailer 7
-
$555 USD
View
A
Retailer 8
-
$695 USD
View
A
Retailer 9
-
$695 USD
€662 EUR
View
A
Retailer 10
-
$737 USD
ZAR 11,904 ZAR
View
A
Retailer 11
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$764 USD
£601 GBP
View
Price last confirmed 21 days ago
A
Retailer 12
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$780 USD
£614 GBP
View
A
Retailer 13
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$1,002 USD
View
A
Retailer 14
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$1,017 USD
A$1,564 AUD
View
A
Retailer 15
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$1,100 USD
View
A
Retailer 16
-
$1,177 USD
View
B+
Retailer 17
-
$1,408 USD
View
B+
Retailer 18
-
$1,449 USD
View
B+
Retailer 19
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$1,471 USD
SGD 1,988 SGD
View
B+
Retailer 20
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$1,479 USD
View
B+
Retailer 21
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$1,682 USD
View
B+
Retailer 22
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$1,723 USD
A$2,651 AUD
View
B+
Retailer 23
-
$1,731 USD
£1,363 GBP
View
B+
Retailer 24
-
$1,795 USD
View
Most Expensive
B
Rare Carat
2186-12-614 · Sep 28
$2,620 USD
View
24 more retailers have this diamond
Prices start from $353 USDSave up to $2,267 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
$353 USD