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Radiant|Lab Grown|IGI

2.78ct D IF Radiant Lab Grown Diamond

VG • D/IF

Diamond specifications and retailer prices

From £1,113 GBP
$1,491 USD
As of October 28, 2026
Save £232 GBP (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,345 GBP at B2C Jewels · As of October 30, 2026
View at B2C Jewels

About this 2.78ct lab-grown radiant diamond

This 2.78ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI. Listed at 3 retailers as of October 28, 2026, with prices from £1,113 to £1,345, a £232 spread on the same certified stone. B2C Jewels lists it at £1,345. 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

2.78
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.77 × 6.99 × 4.71 mm
L/W Ratio1.40
Top View
9.77 mm6.99 mm2.78 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 62.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: £1,345 GBP|Low: £825 GBP|High: £1,488 GBP|Avg: £1,231 GBP|-5.1%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£825 GBP
Retailer 3£1,113 GBP
Retailer 2£1,310 GBP
Retailer 5£1,318 GBP
Retailer 4£1,337 GBP
B2C Jewels£1,345 GBP

35 data points across 6 retailers

3 retailers£1,113 GBP to £1,345 GBP

A
Cheapest Retailer
-
£1,113 GBP
$1,491 USD
A
Retailer 2
-
£1,310 GBP
View
Most Expensive
A
B2C Jewels
36529165 · Oct 30
£1,345 GBP
$1,802 USD
View
2 more retailers have this diamond
Prices start from £1,113 GBPSave up to £232 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
2.78ct Radiant
£1,113 GBP