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Radiant|Natural|GIA

0.40ct G SI2 Radiant Natural Diamond

EX • G/SI2 • GIA 2173559626

Certificate GIA 2173559626

Diamond specifications and retailer prices

From £317 GBP
$425 USD
As of October 28, 2026
Save £316 GBP (50%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £633 GBP at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

About this 0.4ct natural radiant diamond

This 0.4ct natural radiant sits in the sub-half-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2173559626. Listed at 6 retailers as of October 28, 2026, with prices from £317 to £633, a £316 spread on the same certified stone. 77 Diamonds lists it at £633. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2173559626
Dimensions4.46 × 3.86 × 3.02 mm
L/W Ratio1.16
Top View
4.46 mm3.86 mm0.40 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2173559626
Side View
Table 74.0%CrownGirdle: ThickPavilionCulet: NoneDepth 78.3%

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: Oct 28
Current: £633 GBP|Low: £317 GBP|High: £634 GBP|Avg: £452 GBP|+1.8%
77 Diamonds
Retailer 2
Retailer 3
October 31, 2026
Retailer 2£317 GBP
Retailer 3£407 GBP
77 Diamonds£633 GBP

33 data points across 3 retailers

6 retailers£317 GBP to £633 GBP

A
Cheapest Retailer
-
£317 GBP
$425 USD
A
Retailer 2
-
£318 GBP
$426 USD
View
A
Retailer 3
-
£358 GBP
$480 USD
View
B+
Retailer 4
-
£407 GBP
$545 USD
View
B
Retailer 5
-
£460 GBP
$616 USD
View
Most Expensive
B
77 Diamonds
RADZET8NMF2R · Oct 31
£633 GBP
View
5 more retailers have this diamond
Prices start from £317 GBPSave up to £316 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
0.40ct Radiant
£317 GBP