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Radiant|Lab Grown|IGI

1.28ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG649472587

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

Certificate IGI LG649472587

Diamond specifications and retailer prices

From £222 GBP
As of November 6, 2026
Save £1,743 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,965 GBP at Do Amore Diamonds · As of November 6, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG649472587 or 649472587. Listed at 22 retailers as of November 6, 2026, with prices from £222 to £1,965, a £1,743 spread on the same certified stone. Do Amore Diamonds lists it at £1,965. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.4°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649472587
Dimensions7.38 × 5.48 × 3.70 mm
L/W Ratio1.35
Culet sizePointed
Top View
7.38 mm5.48 mm1.28 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649472587
Side View
Table 63.0%Crown 46.4°Girdle: MediumPavilion 35.4°Culet: NoneDepth 67.5%

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 6
Current: £1,965 GBP|Low: £222 GBP|High: £1,965 GBP|Avg: £772 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 7£222 GBP
Retailer 6£257 GBP
Retailer 3£275 GBP
Retailer 5£275 GBP
Retailer 9£319 GBP
Retailer 14£392 GBP
Retailer 11£523 GBP
Retailer 2£537 GBP
Retailer 10£746 GBP
Retailer 15£785 GBP
Retailer 4£844 GBP
Retailer 16£930 GBP
Retailer 8£975 GBP
Retailer 12£1,215 GBP
Retailer 13£1,651 GBP
Do Amore Diamonds£1,965 GBP

35 data points across 16 retailers

22 retailers£222 GBP to £1,965 GBP

A
Cheapest Retailer
-
£222 GBP
A
Retailer 2
-
£252 GBP
View
Final sale: no returns
A
Retailer 3
-
£257 GBP
View
Retailer 4
-
£275 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
£275 GBP
View
A
Retailer 6
-
£319 GBP
View
A
Retailer 7
-
£366 GBP
View
A
Retailer 8
-
£392 GBP
View
A
Retailer 9
-
£394 GBP
View
A
Retailer 10
-
£523 GBP
View
A
Retailer 11
-
£530 GBP
View
A
Retailer 12
-
£537 GBP
View
B+
Retailer 13
-
£746 GBP
View
Retailer 14
-
£785 GBP
View
Price last confirmed 9 days ago
B+
Retailer 15
-
£844 GBP
View
Retailer 16
-
£930 GBP
View
Price last confirmed 17 days ago
B+
Retailer 17
-
£975 GBP
View
B
Retailer 18
-
£1,095 GBP
View
B
Retailer 19
-
£1,183 GBP
View
B+
Retailer 20
-
£1,215 GBP
View
B
Retailer 21
-
£1,651 GBP
View
Most Expensive
B
Do Amore Diamonds
27-D4D6C7715 · Nov 6
£1,965 GBP
$2,630 USD
View
21 more retailers have this diamond
Prices start from £222 GBPSave up to £1,743 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
£222 GBP