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Round|Lab Grown|IGI

1.01ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG445039442

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445039442

Diamond specifications and retailer prices

From £556 GBP
$740 USD
As of October 29, 2026
Save £2,594 GBP (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,150 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.01ct lab-grown round diamond

This 1.01ct 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 LG445039442 or 445039442. Listed at 13 retailers as of October 27, 2026, with prices from £556 to £3,150, a £2,594 spread on the same certified stone. MOH London lists it at £3,150. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445039442
Dimensions6.36 × 6.38 × 4.04 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.36 mm6.38 mm1.01 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445039442
Side View
Table 57.5%Crown 35.9°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.4%

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: £3,150 GBP|Low: £556 GBP|High: £3,188 GBP|Avg: £1,403 GBP|+0.2%
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
Retailer 15
October 29, 2026
Retailer 10£556 GBP
Retailer 9£800 GBP
Retailer 3£870 GBP
Retailer 14£896 GBP
Retailer 11£927 GBP
Retailer 13£927 GBP
Retailer 4£1,059 GBP
Retailer 5£1,322 GBP
Retailer 12£1,478 GBP
Retailer 2£1,705 GBP
Retailer 15£1,738 GBP
Retailer 6£1,881 GBP
Retailer 8£2,054 GBP
Retailer 7£2,076 GBP
MOH London£3,150 GBP

26 data points across 15 retailers

13 retailers£556 GBP to £3,150 GBP

A
Cheapest Retailer
-
£556 GBP
$740 USD
B+
Retailer 2
-
£800 GBP
$1,065 USD
View
B+
Retailer 3
-
£870 GBP
$1,159 USD
View
B+
Retailer 4
-
£896 GBP
$1,193 USD
View
Final sale: no returns
B+
Retailer 5
-
£927 GBP
$1,235 USD
View
Retailer 6
-
£927 GBP
$1,235 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
£1,059 GBP
$1,410 USD
View
B
Retailer 8
-
£1,478 GBP
$1,968 USD
View
B
Retailer 9
-
£1,705 GBP
ZAR 36,681 ZAR
View
B
Retailer 10
-
£1,738 GBP
$2,315 USD
View
B
Retailer 11
-
£1,881 GBP
$2,505 USD
View
B
Retailer 12
-
£2,054 GBP
View
Most Expensive
B
MOH London
LG445039442 · Oct 27
£3,150 GBP
View
12 more retailers have this diamond
Prices start from £556 GBPSave up to £2,594 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
1.01ct Round
£556 GBP