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Round|Lab Grown|IGI

1.57ct H SI2 Round Lab Grown Diamond

EX • H/SI2 • IGI LG476157423

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476157423

Diamond specifications and retailer prices

From $1,267 AUD
$890 USD
As of October 30, 2026
Save $5,269 AUD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,536 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.57ct lab-grown round diamond

This 1.57ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG476157423 or 476157423. Listed at 10 retailers as of October 29, 2026, with prices from $1,267 to $6,536, a $5,269 spread on the same certified stone. MOH London lists it at $6,536. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476157423
Dimensions7.37 × 7.33 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.37 mm7.33 mm1.57 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476157423
Side View
Table 56.5%Crown 35.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.1%

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 30
Current: $6,536 AUD|Low: $1,267 AUD|High: $6,588 AUD|Avg: $3,560 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2$1,267 AUD
Retailer 4$2,197 AUD
Retailer 7$2,562 AUD
Retailer 6$3,116 AUD
Retailer 3$3,596 AUD
Retailer 5$4,131 AUD
Retailer 8$5,096 AUD
MOH London$6,536 AUD

14 data points across 8 retailers

10 retailers$1,267 AUD to $6,536 AUD

A
Cheapest Retailer
-
$1,267 AUD
$890 USD
B+
Retailer 2
-
$1,962 AUD
$1,378 USD
View
B+
Retailer 3
-
$2,135 AUD
$1,500 USD
View
B+
Retailer 4
-
$2,197 AUD
$1,543 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,276 AUD
$1,599 USD
View
Retailer 6
-
$2,276 AUD
$1,599 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$3,596 AUD
$2,526 USD
View
B
Retailer 8
-
$4,131 AUD
$2,902 USD
View
B
Retailer 9
-
$4,267 AUD
$2,997 USD
View
Most Expensive
B
MOH London
LG476157423 · Oct 29
$6,536 AUD
£3,615 GBP
View
9 more retailers have this diamond
Prices start from $1,267 AUDSave up to $5,269 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 Round
$1,267 AUD