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Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG605341596

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

Certificate IGI LG605341596

Diamond specifications and retailer prices

From £159 GBP
$213 USD
As of November 1, 2026
Save £1,198 GBP (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,356 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 LG605341596 or 605341596. Listed at 14 retailers as of November 1, 2026, with prices from £159 to £1,356, a £1,198 spread on the same certified stone. Do Amore Diamonds lists it at £1,356. 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 angle36.3°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605341596
Dimensions7.63 × 5.46 × 3.60 mm
L/W Ratio1.40
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
7.63 mm5.46 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605341596
Side View
Table 62.0%Crown 36.3°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 65.9%

Caratlytics Score

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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 1
Current: £1,356 GBP|Low: £107 GBP|High: £1,356 GBP|Avg: £513 GBP
Do Amore Diamonds
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 11£159 GBP
Retailer 3£279 GBP
Retailer 10£308 GBP
Retailer 5£334 GBP
Retailer 2£358 GBP
Retailer 12£361 GBP
Retailer 7£474 GBP
Retailer 9£511 GBP
Retailer 8£566 GBP
Retailer 4£751 GBP
Retailer 6£776 GBP
Do Amore Diamonds£1,356 GBP

41 data points across 12 retailers

14 retailers£159 GBP to £1,356 GBP

A
Cheapest Retailer
-
£159 GBP
$213 USD
Final sale: no returns
Retailer 2
-
£176 GBP
$236 USD
View
Price last confirmed 30 days ago
A
Retailer 3
-
£279 GBP
$374 USD
View
A
Retailer 4
-
£308 GBP
$413 USD
View
A
Retailer 5
-
£334 GBP
ZAR 7,251 ZAR
View
A
Retailer 6
-
£358 GBP
View
A
Retailer 7
-
£361 GBP
$484 USD
View
B+
Retailer 8
-
£474 GBP
A$978 AUD
View
Retailer 9
-
£511 GBP
A$1,056 AUD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
£566 GBP
$760 USD
View
Retailer 11
-
£623 GBP
$836 USD
View
Price last confirmed 32 days ago
B
Retailer 12
-
£751 GBP
$1,008 USD
View
B
Retailer 13
-
£776 GBP
View
Most Expensive
B
Do Amore Diamonds
27-D1F93F57A · Nov 2
£1,356 GBP
$1,820 USD
View
13 more retailers have this diamond
Prices start from £159 GBPSave up to £1,198 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
£159 GBP