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Round|Lab Grown|IGI

1.61ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG447099710

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099710

Diamond specifications and retailer prices

From $920 USD
As of October 30, 2026
Save $3,742 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,662 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099710 or 447099710. Listed at 11 retailers as of October 29, 2026, with prices from $920 to $4,662, a $3,742 spread on the same certified stone. MOH London lists it at $4,662. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099710
Dimensions7.48 × 7.53 × 4.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.48 mm7.53 mm1.61 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099710
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.6%

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: $4,662 USD|Low: $920 USD|High: $4,693 USD|Avg: $2,180 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$920 USD
Retailer 4$1,244 USD
Retailer 7$1,393 USD
Retailer 5$1,443 USD
Retailer 3$1,615 USD
Retailer 9$2,036 USD
Retailer 6$2,286 USD
Retailer 8$2,765 USD
MOH London$4,662 USD

12 data points across 9 retailers

11 retailers$920 USD to $4,662 USD

A
Cheapest Retailer
-
$920 USD
B+
Retailer 2
-
$1,244 USD
View
B+
Retailer 3
-
$1,354 USD
View
B+
Retailer 4
-
$1,393 USD
View
Final sale: no returns
Retailer 5
-
$1,443 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,443 USD
View
B+
Retailer 7
-
$1,615 USD
View
B
Retailer 8
-
$2,286 USD
View
B
Retailer 9
-
$2,705 USD
View
B
Retailer 10
-
$2,765 USD
View
Most Expensive
B
MOH London
LG447099710 · Oct 29
$4,662 USD
£3,671 GBP
View
10 more retailers have this diamond
Prices start from $920 USDSave up to $3,742 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
$920 USD