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Round|Lab Grown|IGI

1.16ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG487109923

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487109923

Diamond specifications and retailer prices

From $660 USD
As of November 5, 2026
Save $3,572 USD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,232 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.16ct lab-grown round diamond

This 1.16ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487109923 or 487109923. Listed at 13 retailers as of November 5, 2026, with prices from $660 to $4,232, a $3,572 spread on the same certified stone. MOH London lists it at $4,232. 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

1.16
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487109923
Dimensions6.74 × 6.78 × 4.12 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.74 mm6.78 mm1.16 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487109923
Side View
Table 59.5%Crown 33°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.8%

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: Nov 5
Current: $4,232 USD|Low: $660 USD|High: $4,300 USD|Avg: $1,759 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 7$660 USD
Retailer 9$1,079 USD
Retailer 14$1,174 USD
Retailer 13$1,208 USD
Retailer 10$1,251 USD
Retailer 12$1,251 USD
Retailer 4$1,425 USD
Retailer 2$1,435 USD
Retailer 5$1,785 USD
Retailer 11$1,993 USD
Retailer 8$2,145 USD
Retailer 3$2,345 USD
Retailer 6$2,538 USD
MOH London$4,232 USD

39 data points across 14 retailers

13 retailers$660 USD to $4,232 USD

A
Cheapest Retailer
-
$660 USD
B+
Retailer 2
-
$1,079 USD
View
B+
Retailer 3
-
$1,174 USD
View
B+
Retailer 4
-
$1,208 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,251 USD
View
Retailer 6
-
$1,251 USD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$1,425 USD
View
B+
Retailer 8
-
$1,435 USD
View
B
Retailer 9
-
$1,993 USD
View
Retailer 10
-
$2,145 USD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$2,345 USD
View
B
Retailer 12
-
$2,538 USD
View
Most Expensive
B
MOH London
LG487109923 · Nov 5
$4,232 USD
£3,332 GBP
View
12 more retailers have this diamond
Prices start from $660 USDSave up to $3,572 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
1.16ct Round
$660 USD