CaratHunter
Plans
Round|Lab Grown|IGI

1.33ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG407979968

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407979968

Diamond specifications and retailer prices

From £559 GBP
$750 USD
As of November 2, 2026
Save £1,608 GBP (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,892 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.33ct lab-grown round diamond

This 1.33ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG407979968 or 407979968. Listed at 14 retailers as of October 31, 2026, with a 288% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407979968
Dimensions7.07 × 7.05 × 4.30 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.07 mm7.05 mm1.33 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407979968
Side View
Table 60.5%Crown 32.7°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 60.9%

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: Nov 2
Current: £2,892 GBP|Low: £531 GBP|High: £2,927 GBP|Avg: £1,283 GBP|+0.1%
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 3, 2026
Retailer 7£559 GBP
Retailer 9£665 GBP
Retailer 12£744 GBP
Retailer 4£745 GBP
Retailer 10£771 GBP
Retailer 14£771 GBP
Retailer 3£902 GBP
Retailer 5£1,139 GBP
Retailer 11£1,236 GBP
Retailer 2£1,418 GBP
Retailer 8£1,715 GBP
Retailer 13£2,124 GBP
Retailer 6£2,206 GBP
MOH London£2,892 GBP

23 data points across 14 retailers

14 retailers£559 GBP to £2,167 GBP

A
Cheapest Retailer
-
£559 GBP
$750 USD
B+
Retailer 2
-
£665 GBP
$892 USD
View
B+
Retailer 3
-
£723 GBP
$970 USD
View
B+
Retailer 4
-
£744 GBP
$998 USD
View
Final sale: no returns
B+
Retailer 5
-
£745 GBP
$1,000 USD
View
B+
Retailer 6
-
£771 GBP
$1,034 USD
View
Retailer 7
-
£771 GBP
$1,034 USD
View
Price last confirmed 17 days ago
B
Retailer 8
-
£902 GBP
$1,210 USD
View
B
Retailer 9
-
£1,236 GBP
$1,659 USD
View
B
Retailer 10
-
£1,418 GBP
ZAR 30,738 ZAR
View
B
Retailer 11
-
£1,715 GBP
$2,301 USD
View
B
Retailer 12
-
£2,124 GBP
View
B
Retailer 13
-
£2,167 GBP
$2,908 USD
View
Most Expensive
MOH London
LG407979968 · Oct 27
£2,892 GBP
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from £559 GBPSave up to £1,608 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
1.33ct Round
£559 GBP