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Round|Lab Grown|IGI

1.56ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG499105122

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499105122

Diamond specifications and retailer prices

From $1,224 AUD
$860 USD
As of October 31, 2026
Save $5,581 AUD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,805 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.56ct lab-grown round diamond

This 1.56ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499105122 or 499105122. Listed at 10 retailers as of October 29, 2026, with prices from $1,224 to $6,805, a $5,581 spread on the same certified stone. MOH London lists it at $6,805. 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

1.56
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105122
Dimensions7.55 × 7.58 × 4.48 mm
L/W Ratio1.00
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
7.55 mm7.58 mm1.56 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105122
Side View
Table 58.5%Crown 33°Girdle: THN-MEDPavilion 40.5°Culet: NoneDepth 59.2%

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: $6,805 AUD|Low: $1,224 AUD|High: $6,859 AUD|Avg: $3,123 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,224 AUD
Retailer 4$1,817 AUD
Retailer 7$1,976 AUD
Retailer 9$2,036 AUD
Retailer 5$2,107 AUD
Retailer 11$2,914 AUD
Retailer 6$3,337 AUD
Retailer 10$3,926 AUD
Retailer 8$3,949 AUD
Retailer 3$4,716 AUD
MOH London$6,805 AUD

16 data points across 11 retailers

10 retailers$1,224 AUD to $6,805 AUD

A
Cheapest Retailer
-
$1,224 AUD
$860 USD
B+
Retailer 2
-
$1,817 AUD
$1,276 USD
View
B+
Retailer 3
-
$1,976 AUD
$1,388 USD
View
B+
Retailer 4
-
$2,036 AUD
$1,430 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,107 AUD
$1,480 USD
View
Retailer 6
-
$2,107 AUD
$1,480 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$3,337 AUD
$2,344 USD
View
B
Retailer 8
-
$3,926 AUD
$2,758 USD
View
B
Retailer 9
-
$3,949 AUD
$2,774 USD
View
Most Expensive
B
MOH London
LG499105122 · Oct 29
$6,805 AUD
£3,764 GBP
View
9 more retailers have this diamond
Prices start from $1,224 AUDSave up to $5,581 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
1.56ct Round
$1,224 AUD