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Round|Lab Grown|IGI

1.50ct I VS1 Round Lab Grown Diamond

VG • I/VS1 • IGI LG526291318

Shape and cutting style on the report: Round brilliant

Certificate IGI LG526291318

Diamond specifications and retailer prices

From £265 GBP
$356 USD
As of November 3, 2026
Save £1,028 GBP (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,294 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG526291318 or 526291318. Listed at 17 retailers as of October 29, 2026, with prices from £265 to £1,294, a £1,028 spread on the same certified stone. MOH London lists it at £1,294. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526291318
Dimensions7.21 × 7.26 × 4.57 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
7.21 mm7.26 mm1.50 ctI / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526291318
Side View
Table 57.0%Crown 36°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 63.2%

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 3
Current: £1,294 GBP|Low: £265 GBP|High: £1,302 GBP|Avg: £617 GBP|+0.6%
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
November 2, 2026
Retailer 12£265 GBP
Retailer 15£297 GBP
Retailer 5£329 GBP
Retailer 13£329 GBP
Retailer 6£362 GBP
Retailer 9£443 GBP
Retailer 4£513 GBP
Retailer 14£519 GBP
Retailer 11£528 GBP
Retailer 2£568 GBP
Retailer 8£581 GBP
Retailer 3£713 GBP
Retailer 10£966 GBP
Retailer 7£1,089 GBP
MOH London£1,294 GBP

27 data points across 15 retailers

17 retailers£265 GBP to £1,294 GBP

A
Cheapest Retailer
-
£265 GBP
$356 USD
A
Retailer 2
-
£297 GBP
$399 USD
View
Final sale: no returns
A
Retailer 3
-
£308 GBP
$413 USD
View
Retailer 4
-
£329 GBP
$442 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£329 GBP
$442 USD
View
B+
Retailer 6
-
£362 GBP
HK$3,800 HKD
View
B+
Retailer 7
-
£443 GBP
$595 USD
View
B+
Retailer 8
-
£513 GBP
$688 USD
View
B+
Retailer 9
-
£519 GBP
$696 USD
View
B+
Retailer 10
-
£528 GBP
$708 USD
View
B+
Retailer 11
-
£568 GBP
ZAR 12,310 ZAR
View
B+
Retailer 12
-
£581 GBP
$780 USD
View
Retailer 13
-
£713 GBP
$957 USD
View
Price last confirmed 21 days ago
B
Retailer 14
-
£966 GBP
$1,296 USD
View
B
Retailer 15
-
£1,058 GBP
$1,420 USD
View
B
Retailer 16
-
£1,089 GBP
$1,461 USD
View
Most Expensive
B
MOH London
LG526291318 · Oct 29
£1,294 GBP
View
16 more retailers have this diamond
Prices start from £265 GBPSave up to £1,028 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
1.50ct Round
£265 GBP