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Radiant|Lab Grown|GIA

1.67ct D IF Radiant Lab Grown Diamond

EX • D/IF

Diamond specifications and retailer prices

From £1,367 GBP
As of October 30, 2026
Save £1,449 GBP (51%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,816 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.67ct lab-grown radiant diamond

This 1.67ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of October 30, 2026, with prices from £1,367 to £2,816, a £1,449 spread on the same certified stone. Blue Nile lists it at £2,816. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
D
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions7.95 × 5.88 × 4.11 mm
L/W Ratio1.35
Top View
7.95 mm5.88 mm1.67 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £2,816 GBP|Low: £947 GBP|High: £5,091 GBP|Avg: £1,603 GBP
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 5£947 GBP
Retailer 6£1,032 GBP
Retailer 4£1,084 GBP
Retailer 2£1,367 GBP
Retailer 3£2,273 GBP
Blue Nile£2,816 GBP

40 data points across 6 retailers

2 retailers£1,367 GBP to £2,816 GBP

B+
Cheapest Retailer
-
£1,367 GBP
Most Expensive
B
Blue Nile
22038168 · Oct 31
£2,816 GBP
$3,773 USD
View
1 more retailer has this diamond
Prices start from £1,367 GBPSave up to £1,449 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.

B+
1.67ct Radiant
£1,367 GBP