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Round|Lab Grown|IGI

1.29ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG487108221

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487108221

Diamond specifications and retailer prices

From £771 GBP
As of November 3, 2026
Save £2,262 GBP (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,033 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG487108221 or 487108221. Listed at 13 retailers as of November 3, 2026, with prices from £771 to £3,033, a £2,262 spread on the same certified stone. MOH London lists it at £3,033. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487108221
Dimensions6.95 × 6.92 × 4.32 mm
L/W Ratio1.00
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
6.95 mm6.92 mm1.29 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487108221
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £3,033 GBP|Low: £617 GBP|High: £3,073 GBP|Avg: £1,457 GBP
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
Retailer 16
November 3, 2026
Retailer 10£771 GBP
Retailer 11£822 GBP
Retailer 15£839 GBP
Retailer 14£864 GBP
Retailer 12£894 GBP
Retailer 3£1,022 GBP
Retailer 6£1,027 GBP
Retailer 4£1,287 GBP
Retailer 13£1,427 GBP
Retailer 2£1,645 GBP
Retailer 16£1,676 GBP
Retailer 5£1,869 GBP
Retailer 8£2,001 GBP
Retailer 7£2,020 GBP
Retailer 9£2,330 GBP
MOH London£3,033 GBP

23 data points across 16 retailers

13 retailers£771 GBP to £3,033 GBP

B+
Cheapest Retailer
-
£771 GBP
B+
Retailer 2
-
£822 GBP
View
B+
Retailer 3
-
£839 GBP
View
B+
Retailer 4
-
£864 GBP
View
Final sale: no returns
Retailer 5
-
£894 GBP
View
Price last confirmed 19 days ago
B
Retailer 6
-
£894 GBP
View
B
Retailer 7
-
£1,022 GBP
View
B
Retailer 8
-
£1,427 GBP
View
B
Retailer 9
-
£1,645 GBP
View
B
Retailer 10
-
£1,676 GBP
View
B
Retailer 11
-
£1,869 GBP
View
B
Retailer 12
-
£2,330 GBP
View
Most Expensive
B
MOH London
LG487108221 · Nov 3
£3,033 GBP
View
12 more retailers have this diamond
Prices start from £771 GBPSave up to £2,262 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.

B+
1.29ct Round
£771 GBP