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Radiant|Lab Grown|IGI

1.28ct D VS2 Radiant Lab Grown Diamond

GD • D/VS2 • IGI LG683533934

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

Certificate IGI LG683533934

Diamond specifications and retailer prices

From £190 GBP
As of November 4, 2026
Save £853 GBP (82%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,689 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 VS2 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG683533934 or 683533934. Listed at 9 retailers as of November 1, 2026, with a 450% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
D
Colour
VS2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683533934
Dimensions7.67 × 5.42 × 3.63 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.67 mm5.42 mm1.28 ctD / VS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683533934
Side View
Table 65.0%Crown 44.1°Girdle: Slightly ThickPavilion 35.9°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
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 4
Current: £1,689 GBP|Low: £182 GBP|High: £1,689 GBP|Avg: £730 GBP|+3.6%
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 4, 2026
Retailer 7£190 GBP
Retailer 9£220 GBP
Retailer 6£315 GBP
Retailer 10£424 GBP
Retailer 2£433 GBP
Retailer 11£473 GBP
Retailer 4£810 GBP
Retailer 8£836 GBP
Retailer 3£970 GBP
Retailer 12£1,027 GBP
Retailer 5£1,042 GBP
Do Amore Diamonds£1,689 GBP

21 data points across 12 retailers

9 retailers£190 GBP to £1,042 GBP

A
Cheapest Retailer
-
£190 GBP
A
Retailer 2
-
£220 GBP
View
B+
Retailer 3
-
£315 GBP
View
B
Retailer 4
-
£424 GBP
View
B+
Retailer 5
-
£433 GBP
View
B
Retailer 6
-
£836 GBP
View
B
Retailer 7
-
£1,042 GBP
View
Retailer 8
-
£1,630 GBP
View
Price under review
Most Expensive
Do Amore Diamonds
27-6145CA493 · Nov 4
£1,689 GBP
$2,280 USD
View
Price under review
8 more retailers have this diamond
Prices start from £190 GBPSave up to £853 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
£190 GBP