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Radiant|Lab Grown|IGI

1.27ct D FL Radiant Lab Grown Diamond

GD • D/FL

Diamond specifications and retailer prices

From £177 GBP
$237 USD
As of November 2, 2026
Save £1,203 GBP (87%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,380 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.27ct lab-grown radiant diamond

This 1.27ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI. Listed at 5 retailers as of October 31, 2026, with prices from £177 to £1,380, a £1,203 spread on the same certified stone. Blue Nile lists it at £1,380. 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

1.27
Carat
D
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.86 × 5.30 × 3.60 mm
L/W Ratio1.48
Top View
7.86 mm5.30 mm1.27 ctD / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.9%

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 2
Current: £1,380 GBP|Low: £177 GBP|High: £1,994 GBP|Avg: £884 GBP
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 2£177 GBP
Retailer 5£205 GBP
Retailer 3£399 GBP
Retailer 4£778 GBP
Blue Nile£1,380 GBP
Retailer 6£1,994 GBP

12 data points across 6 retailers

5 retailers£177 GBP to £1,380 GBP

A
Cheapest Retailer
-
£177 GBP
$237 USD
A
Retailer 2
-
£205 GBP
$275 USD
View
B+
Retailer 3
-
£399 GBP
$536 USD
View
B+
Retailer 4
-
£778 GBP
$1,044 USD
View
Most Expensive
C
Blue Nile
30353132 · Oct 31
£1,380 GBP
$1,852 USD
View
4 more retailers have this diamond
Prices start from £177 GBPSave up to £1,203 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
1.27ct Radiant
£177 GBP