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Round|Lab Grown|IGI

1.51ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG555273709

Shape and cutting style on the report: Round brilliant

Certificate IGI LG555273709

Diamond specifications and retailer prices

From £268 GBP
$359 USD
As of November 3, 2026
Save £1,027 GBP (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,295 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct 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 top-tier cut grade and certified by IGI LG555273709 or 555273709. Listed at 16 retailers as of November 3, 2026, with prices from £268 to £1,295, a £1,027 spread on the same certified stone. MOH London lists it at £1,295. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555273709
Dimensions7.27 × 7.33 × 4.56 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
7.27 mm7.33 mm1.51 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555273709
Side View
Table 56.5%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: Nov 3
Current: £1,295 GBP|Low: £268 GBP|High: £1,310 GBP|Avg: £622 GBP|-1.0%
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
November 3, 2026
Retailer 10£268 GBP
Retailer 13£298 GBP
Retailer 11£332 GBP
Retailer 4£362 GBP
Retailer 7£443 GBP
Retailer 3£519 GBP
Retailer 12£521 GBP
Retailer 9£531 GBP
Retailer 2£571 GBP
Retailer 6£589 GBP
Retailer 8£972 GBP
Retailer 5£1,095 GBP
MOH London£1,295 GBP

26 data points across 13 retailers

16 retailers£268 GBP to £1,295 GBP

A
Cheapest Retailer
-
£268 GBP
$359 USD
A
Retailer 2
-
£298 GBP
$400 USD
View
Final sale: no returns
A
Retailer 3
-
£310 GBP
$416 USD
View
Retailer 4
-
£332 GBP
$445 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
£332 GBP
$445 USD
View
A
Retailer 6
-
£362 GBP
HK$3,800 HKD
View
A
Retailer 7
-
£443 GBP
$595 USD
View
B+
Retailer 8
-
£519 GBP
$696 USD
View
B+
Retailer 9
-
£521 GBP
$699 USD
View
B+
Retailer 10
-
£531 GBP
$713 USD
View
B+
Retailer 11
-
£571 GBP
ZAR 12,385 ZAR
View
B+
Retailer 12
-
£589 GBP
$790 USD
View
B
Retailer 13
-
£972 GBP
$1,304 USD
View
B
Retailer 14
-
£1,065 GBP
$1,429 USD
View
B
Retailer 15
-
£1,095 GBP
$1,470 USD
View
Most Expensive
B
MOH London
LG555273709 · Nov 3
£1,295 GBP
View
15 more retailers have this diamond
Prices start from £268 GBPSave up to £1,027 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
1.51ct Round
£268 GBP