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Round|Lab Grown|IGI

1.76ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG451057582

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057582

Diamond specifications and retailer prices

From $990 USD
As of October 31, 2026
Save $4,096 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,086 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.76ct lab-grown round diamond

This 1.76ct 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 LG451057582 or 451057582. Listed at 11 retailers as of October 29, 2026, with prices from $990 to $5,086, a $4,096 spread on the same certified stone. MOH London lists it at $5,086. 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

1.76
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057582
Dimensions7.87 × 7.90 × 4.63 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
7.87 mm7.90 mm1.76 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057582
Side View
Table 59.0%Crown 31.6°GirdlePavilion 40.2°Culet: NoneDepth 58.7%

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 31
Current: $5,086 USD|Low: $990 USD|High: $5,121 USD|Avg: $2,408 USD|+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$990 USD
Retailer 4$1,357 USD
Retailer 7$1,519 USD
Retailer 5$1,575 USD
Retailer 8$1,575 USD
Retailer 9$1,745 USD
Retailer 11$2,168 USD
Retailer 6$2,488 USD
Retailer 10$2,935 USD
Retailer 3$4,506 USD
MOH London$5,086 USD

12 data points across 11 retailers

11 retailers$990 USD to $5,086 USD

A
Cheapest Retailer
-
$990 USD
B+
Retailer 2
-
$1,357 USD
View
B+
Retailer 3
-
$1,477 USD
View
B+
Retailer 4
-
$1,519 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,575 USD
View
Retailer 6
-
$1,575 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$1,745 USD
View
B
Retailer 8
-
$2,488 USD
View
B
Retailer 9
-
$2,935 USD
View
B
Retailer 10
-
$2,951 USD
View
Most Expensive
B
MOH London
LG451057582 · Oct 29
$5,086 USD
£4,005 GBP
View
10 more retailers have this diamond
Prices start from $990 USDSave up to $4,096 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
1.76ct Round
$990 USD