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Oval|Lab Grown|IGI

1.57ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG451055467

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451055467

Diamond specifications and retailer prices

From $860 USD
As of October 31, 2026
Save $4,217 USD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,077 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.57ct lab-grown oval diamond

This 1.57ct lab-grown oval 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 LG451055467 or 451055467. Listed at 12 retailers as of October 29, 2026, with prices from $860 to $5,077, a $4,217 spread on the same certified stone. MOH London lists it at $5,077. 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
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055467
Dimensions9.50 × 6.63 × 4.03 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.50 mm6.63 mm1.57 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055467
Side View
Table 56.5%Crown 34.1°Girdle: THN-STKPavilion 41°Culet: NoneDepth 60.8%

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: Oct 31
Current: $5,077 USD|Low: $860 USD|High: $5,110 USD|Avg: $2,313 USD|+0.6%
MOH London
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
November 1, 2026
Retailer 8$860 USD
Retailer 7$1,355 USD
Retailer 12$1,474 USD
Retailer 13$1,516 USD
Retailer 9$1,572 USD
Retailer 14$1,572 USD
Retailer 3$1,745 USD
Retailer 5$2,157 USD
Retailer 2$2,244 USD
Retailer 10$2,484 USD
Retailer 4$2,930 USD
Retailer 11$2,946 USD
Retailer 6$4,501 USD
MOH London$5,077 USD

37 data points across 14 retailers

12 retailers$860 USD to $5,077 USD

A
Cheapest Retailer
-
$860 USD
B+
Retailer 2
-
$1,355 USD
View
B+
Retailer 3
-
$1,474 USD
View
B+
Retailer 4
-
$1,516 USD
View
Final sale: no returns
Retailer 5
-
$1,572 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$1,572 USD
View
B+
Retailer 7
-
$1,745 USD
View
B+
Retailer 8
-
$2,244 USD
£1,767 GBP
View
B
Retailer 9
-
$2,484 USD
View
B
Retailer 10
-
$2,930 USD
View
B
Retailer 11
-
$2,946 USD
View
Most Expensive
B
MOH London
LG451055467 · Oct 29
$5,077 USD
£3,998 GBP
View
11 more retailers have this diamond
Prices start from $860 USDSave up to $4,217 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 Oval
$860 USD