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Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG805675561

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG805675561

Diamond specifications and retailer prices

From £213 GBP
As of November 2, 2026
Save £620 GBP (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £834 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG805675561 or 805675561. Listed at 12 retailers as of November 1, 2026, with prices from £213 to £834, a £620 spread on the same certified stone. MOH London lists it at £834. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805675561
Dimensions7.87 × 5.26 × 3.57 mm
L/W Ratio1.50
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.87 mm5.26 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805675561
Side View
Table 66.0%Crown 44.1°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 67.9%

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: £834 GBP|Low: £213 GBP|High: £839 GBP|Avg: £468 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
November 2, 2026
Retailer 5£213 GBP
Retailer 7£308 GBP
Retailer 4£311 GBP
Retailer 8£318 GBP
Retailer 6£325 GBP
Retailer 10£358 GBP
Retailer 2£435 GBP
Retailer 12£484 GBP
Retailer 11£575 GBP
Retailer 3£613 GBP
Retailer 9£708 GBP
MOH London£834 GBP

16 data points across 12 retailers

12 retailers£213 GBP to £834 GBP

A
Cheapest Retailer
-
£213 GBP
A
Retailer 2
-
£308 GBP
ZAR 6,674 ZAR
View
A
Retailer 3
-
£311 GBP
$417 USD
View
A
Retailer 4
-
£318 GBP
€406 EUR
View
A
Retailer 5
-
£325 GBP
View
A
Retailer 6
-
£358 GBP
$480 USD
View
B+
Retailer 7
-
£435 GBP
A$898 AUD
View
Retailer 8
-
£484 GBP
$650 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
£575 GBP
$772 USD
View
B
Retailer 10
-
£613 GBP
$823 USD
View
B
Retailer 11
-
£708 GBP
$950 USD
View
Most Expensive
B
MOH London
LG805675561 · Nov 1
£834 GBP
View
11 more retailers have this diamond
Prices start from £213 GBPSave up to £620 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
1.28ct Radiant
£213 GBP