CaratHunter
Plans
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 £597 GBP
$800 USD
As of October 29, 2026
Save £2,610 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,207 GBP 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 £597 to £3,207, a £2,610 spread on the same certified stone. MOH London lists it at £3,207. 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
Colour
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: £3,207 GBP|Low: £597 GBP|High: £3,228 GBP|Avg: £1,496 GBP|+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£597 GBP
Retailer 5£856 GBP
Retailer 10£958 GBP
Retailer 7£993 GBP
Retailer 9£993 GBP
Retailer 11£1,123 GBP
Retailer 12£1,402 GBP
Retailer 8£1,578 GBP
Retailer 2£1,825 GBP
Retailer 3£1,957 GBP
Retailer 4£2,223 GBP
MOH London£3,207 GBP

17 data points across 12 retailers

12 retailers£597 GBP to £3,207 GBP

A
Cheapest Retailer
-
£597 GBP
$800 USD
B+
Retailer 2
-
£856 GBP
$1,147 USD
View
B+
Retailer 3
-
£931 GBP
$1,248 USD
View
B+
Retailer 4
-
£958 GBP
$1,284 USD
View
Final sale: no returns
Retailer 5
-
£993 GBP
$1,330 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
£993 GBP
$1,330 USD
View
B+
Retailer 7
-
£1,123 GBP
$1,505 USD
View
B
Retailer 8
-
£1,578 GBP
$2,115 USD
View
B
Retailer 9
-
£1,825 GBP
ZAR 39,510 ZAR
View
B
Retailer 10
-
£1,861 GBP
$2,494 USD
View
B
Retailer 11
-
£1,957 GBP
$2,622 USD
View
Most Expensive
B
MOH London
LG476157509 · Oct 29
£3,207 GBP
View
11 more retailers have this diamond
Prices start from £597 GBPSave up to £2,610 GBP

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
£597 GBP