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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 $1,123 USD
As of October 29, 2026
Save $3,085 USD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,208 USD 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 $1,123 to $4,208, a $3,085 spread on the same certified stone. MOH London lists it at $4,208. 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
Color
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 29
Current: $4,208 USD|Low: $1,150 USD|High: $4,242 USD|Avg: $2,148 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2$1,150 USD
Retailer 4$1,257 USD
Retailer 7$1,407 USD
Retailer 6$1,865 USD
Retailer 3$2,071 USD
Retailer 5$2,642 USD
Retailer 8$2,913 USD
MOH London$4,208 USD

11 data points across 8 retailers

10 retailers$1,123 USD to $4,208 USD

A
Cheapest Retailer
-
$1,123 USD
A
Retailer 2
-
$1,150 USD
View
A
Retailer 3
-
$1,222 USD
View
B+
Retailer 4
-
$1,257 USD
View
Final sale: no returns
Retailer 5
-
$1,303 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$1,303 USD
View
B
Retailer 7
-
$2,071 USD
View
B
Retailer 8
-
$2,442 USD
View
B
Retailer 9
-
$2,642 USD
View
Most Expensive
B
MOH London
LG451056262 · Oct 29
$4,208 USD
£3,313 GBP
View
9 more retailers have this diamond
Prices start from $1,123 USDSave up to $3,085 USD

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
$1,123 USD