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Radiant|Lab Grown|IGI

1.57ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG474119434

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

Certificate IGI LG474119434

Diamond specifications and retailer prices

From $195 USD
As of October 27, 2026
Save $1,675 USD (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,870 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG474119434 or 474119434. Listed at 9 retailers as of October 27, 2026, with prices from $195 to $1,870, a $1,675 spread on the same certified stone. Do Amore Diamonds lists it at $1,870. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.57
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.7°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474119434
Dimensions7.23 × 5.79 × 3.96 mm
L/W Ratio1.25
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
7.23 mm5.79 mm1.57 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474119434
Side View
Table 67.5%Crown 48.7°Girdle: MED-STKPavilion 31.2°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
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 27
Current: $1,870 USD|Low: $151 USD|High: $1,870 USD|Avg: $667 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6$195 USD
Retailer 10$218 USD
Retailer 9$226 USD
Retailer 2$299 USD
Retailer 8$422 USD
Retailer 11$570 USD
Retailer 5$780 USD
Retailer 3$796 USD
Retailer 7$858 USD
Retailer 4$1,071 USD
Do Amore Diamonds$1,870 USD

35 data points across 11 retailers

9 retailers$195 USD to $1,870 USD

A
Cheapest Retailer
-
$195 USD
A
Retailer 2
-
$218 USD
View
Final sale: no returns
A
Retailer 3
-
$226 USD
View
A
Retailer 4
-
$299 USD
£235 GBP
View
B+
Retailer 5
-
$422 USD
View
B
Retailer 6
-
$780 USD
View
B
Retailer 7
-
$858 USD
View
B
Retailer 8
-
$1,071 USD
£843 GBP
View
Most Expensive
B
Do Amore Diamonds
27-3B8728BE6 · Oct 29
$1,870 USD
View
8 more retailers have this diamond
Prices start from $195 USDSave up to $1,675 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.57ct Radiant
$195 USD