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Round|Lab Grown|IGI

1.09ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG476157509

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476157509

Diamond specifications and retailer prices

From $800 USD
As of October 29, 2026
Save $3,498 USD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,298 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG476157509 or 476157509. Listed at 12 retailers as of October 29, 2026, with prices from $800 to $4,298, a $3,498 spread on the same certified stone. MOH London lists it at $4,298. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
J
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476157509
Dimensions6.61 × 6.63 × 4.08 mm
L/W Ratio1.00
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
6.61 mm6.63 mm1.09 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476157509
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,298 USD|Low: $800 USD|High: $4,326 USD|Avg: $2,004 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
Retailer 12
October 29, 2026
Retailer 6$800 USD
Retailer 5$1,147 USD
Retailer 10$1,284 USD
Retailer 7$1,330 USD
Retailer 9$1,330 USD
Retailer 11$1,505 USD
Retailer 12$1,878 USD
Retailer 8$2,115 USD
Retailer 2$2,446 USD
Retailer 3$2,622 USD
Retailer 4$2,978 USD
MOH London$4,298 USD

17 data points across 12 retailers

12 retailers$800 USD to $4,298 USD

A
Cheapest Retailer
-
$800 USD
B+
Retailer 2
-
$1,147 USD
View
B+
Retailer 3
-
$1,248 USD
View
B+
Retailer 4
-
$1,284 USD
View
Final sale: no returns
Retailer 5
-
$1,330 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$1,330 USD
View
B+
Retailer 7
-
$1,505 USD
View
B
Retailer 8
-
$2,115 USD
View
B
Retailer 9
-
$2,446 USD
ZAR 39,510 ZAR
View
B
Retailer 10
-
$2,494 USD
View
B
Retailer 11
-
$2,622 USD
View
Most Expensive
B
MOH London
LG476157509 · Oct 29
$4,298 USD
£3,384 GBP
View
11 more retailers have this diamond
Prices start from $800 USDSave up to $3,498 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
1.09ct Round
$800 USD