CaratHunter
Plans
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 $473 AUD
$332 USD
As of October 30, 2026
Save $1,191 AUD (72%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,663 AUD at MOH London · As of October 26, 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 October 26, 2026, with prices from $473 to $1,663, a $1,191 spread on the same certified stone. MOH London lists it at $1,663. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,663 AUD|Low: $473 AUD|High: $2,320 AUD|Avg: $987 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$473 AUD
Retailer 3$592 AUD
Retailer 2$646 AUD
Retailer 7$726 AUD
Retailer 5$830 AUD
Retailer 8$1,218 AUD
Retailer 4$1,409 AUD
MOH London$1,663 AUD

42 data points across 8 retailers

8 retailers$473 AUD to $1,663 AUD

B+
Cheapest Retailer
-
$473 AUD
$332 USD
A
Retailer 2
-
$592 AUD
€396 EUR
View
A
Retailer 3
-
$646 AUD
£358 GBP
View
A
Retailer 4
-
$726 AUD
$510 USD
View
A
Retailer 5
-
$830 AUD
$583 USD
View
B+
Retailer 6
-
$1,218 AUD
$856 USD
View
B
Retailer 7
-
$1,409 AUD
$990 USD
View
Most Expensive
B
MOH London
LG773631420 · Oct 26
$1,663 AUD
£920 GBP
View
7 more retailers have this diamond
Prices start from $473 AUDSave up to $1,191 AUD

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
$473 AUD