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Oval|Lab Grown|IGI

1.57ct G SI1 Oval Lab Grown Diamond

EX • G/SI1 • IGI LG773631420

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG773631420

Diamond specifications and retailer prices

From $589 NZD
$332 USD
As of November 1, 2026
Save $1,482 NZD (72%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,071 NZD at MOH London · As of November 1, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG773631420 or 773631420. Listed at 8 retailers as of November 1, 2026, with prices from $589 to $2,071, a $1,482 spread on the same certified stone. MOH London lists it at $2,071. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773631420
Dimensions9.67 × 6.37 × 4.06 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.67 mm6.37 mm1.57 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773631420
Side View
Table 60.0%Crown 33.7°Girdle: THN-STKPavilion 41°Culet: NoneDepth 63.7%

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: Nov 1
Current: $2,071 NZD|Low: $589 NZD|High: $2,892 NZD|Avg: $1,235 NZD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$589 NZD
Retailer 3$738 NZD
Retailer 2$806 NZD
Retailer 7$905 NZD
Retailer 5$1,034 NZD
Retailer 8$1,518 NZD
Retailer 4$1,757 NZD
MOH London$2,071 NZD

41 data points across 8 retailers

8 retailers$589 NZD to $2,071 NZD

B+
Cheapest Retailer
-
$589 NZD
$332 USD
A
Retailer 2
-
$738 NZD
€396 EUR
View
A
Retailer 3
-
$806 NZD
£358 GBP
View
A
Retailer 4
-
$905 NZD
$510 USD
View
A
Retailer 5
-
$1,034 NZD
$583 USD
View
B+
Retailer 6
-
$1,518 NZD
$856 USD
View
B
Retailer 7
-
$1,757 NZD
$990 USD
View
Most Expensive
B
MOH London
LG773631420 · Nov 1
$2,071 NZD
£919 GBP
View
7 more retailers have this diamond
Prices start from $589 NZDSave up to $1,482 NZD

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
$589 NZD