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Round|Lab Grown|IGI

1.61ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG451056262

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451056262

Diamond specifications and retailer prices

From $1,295 AUD
$910 USD
As of October 30, 2026
Save $4,694 AUD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,990 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.61ct lab-grown round diamond

This 1.61ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056262 or 451056262. Listed at 10 retailers as of October 29, 2026, with prices from $1,295 to $5,990, a $4,694 spread on the same certified stone. MOH London lists it at $5,990. 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

1.61
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056262
Dimensions7.44 × 7.38 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.44 mm7.38 mm1.61 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056262
Side View
Table 59.0%Crown 36.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.7%

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: Oct 30
Current: $5,990 AUD|Low: $1,295 AUD|High: $6,039 AUD|Avg: $3,059 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2$1,295 AUD
Retailer 4$1,789 AUD
Retailer 7$2,004 AUD
Retailer 6$2,655 AUD
Retailer 3$2,948 AUD
Retailer 5$3,761 AUD
Retailer 8$4,146 AUD
MOH London$5,990 AUD

12 data points across 8 retailers

10 retailers$1,295 AUD to $5,990 AUD

A
Cheapest Retailer
-
$1,295 AUD
$910 USD
B+
Retailer 2
-
$1,599 AUD
$1,123 USD
View
B+
Retailer 3
-
$1,740 AUD
$1,222 USD
View
B+
Retailer 4
-
$1,789 AUD
$1,257 USD
View
Final sale: no returns
Retailer 5
-
$1,855 AUD
$1,303 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,855 AUD
$1,303 USD
View
B
Retailer 7
-
$2,948 AUD
$2,071 USD
View
B
Retailer 8
-
$3,476 AUD
$2,442 USD
View
B
Retailer 9
-
$3,761 AUD
$2,642 USD
View
Most Expensive
B
MOH London
LG451056262 · Oct 29
$5,990 AUD
£3,313 GBP
View
9 more retailers have this diamond
Prices start from $1,295 AUDSave up to $4,694 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
1.61ct Round
$1,295 AUD