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Princess|Lab Grown|IGI

1.57ct I SI1 Princess Lab Grown Diamond

ID • I/SI1 • IGI LG440012079

Shape and cutting style on the report: Princess cut

Certificate IGI LG440012079

Diamond specifications and retailer prices

From $920 USD
As of November 4, 2026
Save $4,117 USD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,037 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.57ct lab-grown princess diamond

This 1.57ct lab-grown princess sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012079 or 440012079. Listed at 10 retailers as of November 4, 2026, with prices from $920 to $5,037, a $4,117 spread on the same certified stone. MOH London lists it at $5,037. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.5°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012079
Dimensions6.34 × 6.23 × 4.60 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
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Top View
6.34 mm6.23 mm1.57 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG440012079
Side View
Table 69.5%Crown 45.5°Girdle: Slightly ThickPavilion 38.4°Culet: NoneDepth 73.8%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $5,037 USD|Low: $920 USD|High: $5,118 USD|Avg: $2,524 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 2$920 USD
Retailer 3$1,355 USD
Retailer 5$1,745 USD
Retailer 7$2,157 USD
Retailer 4$2,484 USD
Retailer 6$2,930 USD
MOH London$5,037 USD

12 data points across 7 retailers

10 retailers$920 USD to $5,037 USD

A
Cheapest Retailer
-
$920 USD
B+
Retailer 2
-
$1,355 USD
View
B+
Retailer 3
-
$1,474 USD
View
B+
Retailer 4
-
$1,572 USD
View
Retailer 5
-
$1,572 USD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$1,745 USD
View
B
Retailer 7
-
$2,484 USD
View
B
Retailer 8
-
$2,930 USD
View
B
Retailer 9
-
$2,946 USD
View
Most Expensive
B
MOH London
LG440012079 · Nov 5
$5,037 USD
£3,966 GBP
View
9 more retailers have this diamond
Prices start from $920 USDSave up to $4,117 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 Princess
$920 USD