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Radiant|Lab Grown|GCAL

1.28ct D IF Radiant Lab Grown Diamond

ID • D/IF • GCAL 360866411

Shape and cutting style on the report: Radiant brilliant

Certificate GCAL 360866411

Diamond specifications and retailer prices

From £548 GBP
As of November 3, 2026
Save £1,868 GBP (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,933 GBP at Do Amore Diamonds · As of November 4, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GCAL 360866411. Listed at 9 retailers as of November 3, 2026, with a 341% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle60.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 360866411
Dimensions7.69 × 5.39 × 3.68 mm
L/W Ratio1.43
Culet sizeNone
Top View
7.69 mm5.39 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 360866411
Side View
Table 64.0%Crown 43°Girdle: MED-STKPavilion 60.2°Culet: NoneDepth 68.3%

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 3
Current: £3,933 GBP|Low: £548 GBP|High: £3,933 GBP|Avg: £2,145 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 6£548 GBP
Retailer 10£773 GBP
Retailer 8£1,052 GBP
Retailer 9£1,834 GBP
Retailer 4£2,062 GBP
Retailer 5£2,416 GBP
Retailer 7£2,539 GBP
Retailer 2£3,733 GBP
Retailer 3£3,733 GBP
Do Amore Diamonds£3,933 GBP

21 data points across 10 retailers

9 retailers£548 GBP to £2,416 GBP

A
Cheapest Retailer
-
£548 GBP
B+
Retailer 2
-
£773 GBP
View
B+
Retailer 3
-
£1,052 GBP
View
B
Retailer 4
-
£1,834 GBP
View
B
Retailer 5
-
£2,062 GBP
View
B
Retailer 6
-
£2,416 GBP
View
Retailer 7
-
£3,733 GBP
View
Price under review
Retailer 8
-
£3,733 GBP
View
Price under review
Most Expensive
Do Amore Diamonds
32-360866411 · Nov 4
£3,933 GBP
$5,310 USD
View
Price under review
8 more retailers have this diamond
Prices start from £548 GBPSave up to £1,868 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
£548 GBP