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Round|Lab Grown|IGI

1.15ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG526291246

Shape and cutting style on the report: Round brilliant

Certificate IGI LG526291246

Diamond specifications and retailer prices

From £240 GBP
$322 USD
As of November 3, 2026
Save £828 GBP (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,068 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.15ct lab-grown round diamond

This 1.15ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG526291246 or 526291246. Listed at 19 retailers as of November 3, 2026, with prices from £240 to £1,068, a £828 spread on the same certified stone. MOH London lists it at £1,068. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.15
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526291246
Dimensions6.74 × 6.70 × 4.18 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
6.74 mm6.70 mm1.15 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526291246
Side View
Table 56.0%Crown 35°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £1,068 GBP|Low: £240 GBP|High: £1,081 GBP|Avg: £512 GBP|-1.1%
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
Retailer 15
November 2, 2026
Retailer 15£240 GBP
Retailer 11£267 GBP
Retailer 13£267 GBP
Retailer 6£296 GBP
Retailer 7£410 GBP
Retailer 12£438 GBP
Retailer 9£440 GBP
Retailer 14£449 GBP
Retailer 2£460 GBP
Retailer 4£464 GBP
Retailer 8£492 GBP
Retailer 3£566 GBP
Retailer 10£819 GBP
Retailer 5£893 GBP
MOH London£1,068 GBP

26 data points across 15 retailers

19 retailers£240 GBP to £1,068 GBP

Retailer 1
-
£206 GBP
$277 USD
Price last confirmed 26 days ago
A
Retailer 2
-
£240 GBP
$322 USD
View
Final sale: no returns
Retailer 3
-
£250 GBP
$335 USD
View
Price last confirmed 28 days ago
A
Retailer 4
-
£250 GBP
$335 USD
View
Retailer 5
-
£267 GBP
$358 USD
View
Price last confirmed 31 days ago
Retailer 6
-
£267 GBP
$358 USD
View
Price last confirmed 9 days ago
A
Retailer 7
-
£296 GBP
HK$3,100 HKD
View
B
Retailer 8
-
£438 GBP
$588 USD
View
B+
Retailer 9
-
£440 GBP
$590 USD
View
B
Retailer 10
-
£449 GBP
$603 USD
View
B+
Retailer 11
-
£460 GBP
ZAR 9,962 ZAR
View
B+
Retailer 12
-
£464 GBP
$623 USD
View
B+
Retailer 13
-
£492 GBP
$660 USD
View
Retailer 14
-
£566 GBP
$759 USD
View
Price last confirmed 21 days ago
B
Retailer 15
-
£819 GBP
$1,099 USD
View
Retailer 16
-
£857 GBP
$1,150 USD
View
Price last confirmed 33 days ago
B
Retailer 17
-
£857 GBP
$1,150 USD
View
B
Retailer 18
-
£893 GBP
$1,199 USD
View
Most Expensive
B
MOH London
LG526291246 · Nov 3
£1,068 GBP
View
18 more retailers have this diamond
Prices start from £240 GBPSave up to £828 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
1.15ct Round
£240 GBP