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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG768623613

Certificate IGI LG768623613

Diamond specifications and retailer prices

From $352 USD
Save $2,278 USD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,630 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 LG768623613 or 768623613. Listed at 24 retailers, with prices from $352 to $2,630 at Rare Carat, a $2,278 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 angle38.5°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768623613
Dimensions8.58 × 5.77 × 3.75 mm
L/W Ratio1.49
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
8.58 mm5.77 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768623613
Side View
Table 62.0%Crown 38.5°Girdle: MediumPavilion 33.5°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $2,630 USD|Low: $280 USD|High: $2,630 USD|Avg: $1,046 USD|+6.1%
Rare Carat
Retailer 2
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Retailer 23
September 30, 2026
Retailer 17$352 USD
Retailer 8$393 USD
Retailer 21$409 USD
Retailer 4$431 USD
Retailer 23$437 USD
Retailer 10$486 USD
Retailer 3$660 USD
Retailer 5$687 USD
Retailer 7$694 USD
Retailer 13$702 USD
Retailer 22$735 USD
Retailer 18$776 USD
Retailer 20$1,013 USD
Retailer 11$1,099 USD
Retailer 12$1,174 USD
Retailer 6$1,396 USD
Retailer 2$1,404 USD
Retailer 15$1,445 USD
Retailer 14$1,679 USD
Retailer 9$1,692 USD
Retailer 19$1,727 USD
Retailer 16$1,789 USD
Rare Carat$2,630 USD

39 data points across 23 retailers

24 retailers$352 USD to $2,630 USD

A
Cheapest Retailer
-
$352 USD
A
Retailer 2
-
$393 USD
View
A
Retailer 3
-
$409 USD
View
A
Retailer 4
-
$431 USD
View
A
Retailer 5
-
$437 USD
View
A
Retailer 6
-
$486 USD
HK$3,800 HKD
View
A
Retailer 7
-
$660 USD
View
A
Retailer 8
-
$687 USD
€654 EUR
View
A
Retailer 9
-
$694 USD
View
A
Retailer 10
-
$702 USD
View
A
Retailer 11
-
$735 USD
ZAR 11,872 ZAR
View
A
Retailer 12
-
$778 USD
£612 GBP
View
A
Retailer 13
-
$1,013 USD
A$1,559 AUD
View
A
Retailer 14
-
$1,099 USD
View
A
Retailer 15
-
$1,174 USD
View
B+
Retailer 16
-
$1,396 USD
SGD 1,886 SGD
View
B+
Retailer 17
-
$1,404 USD
View
B+
Retailer 18
-
$1,445 USD
View
B+
Retailer 19
-
$1,658 USD
View
B+
Retailer 20
-
$1,679 USD
View
B+
Retailer 21
-
$1,692 USD
£1,332 GBP
View
B+
Retailer 22
-
$1,727 USD
£1,360 GBP
View
B+
Retailer 23
-
$1,789 USD
View
Most Expensive
B
Rare Carat
A5-163A · Sep 28
$2,630 USD
View
23 more retailers have this diamond
Prices start from $352 USDSave up to $2,278 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
$352 USD