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Round|Lab Grown|IGI

1.61ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG445036211

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445036211

Diamond specifications and retailer prices

From $920 USD
As of October 30, 2026
Save $3,723 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,643 USD at MOH London · As of October 25, 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 LG445036211 or 445036211. Listed at 11 retailers as of October 25, 2026, with prices from $920 to $4,643, a $3,723 spread on the same certified stone. MOH London lists it at $4,643. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445036211
Dimensions7.54 × 7.50 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.54 mm7.50 mm1.61 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445036211
Side View
Table 56.5%Crown 36.3°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.7%

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: $4,643 USD|Low: $920 USD|High: $4,693 USD|Avg: $2,116 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$920 USD
Retailer 3$1,244 USD
Retailer 6$1,393 USD
Retailer 4$1,443 USD
Retailer 7$1,615 USD
Retailer 10$1,710 USD
Retailer 9$2,036 USD
Retailer 5$2,286 USD
Retailer 8$2,765 USD
MOH London$4,643 USD

12 data points across 10 retailers

11 retailers$920 USD to $4,643 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
LG445036211 · Oct 25
$4,643 USD
£3,656 GBP
View
10 more retailers have this diamond
Prices start from $920 USDSave up to $3,723 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