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Radiant|Natural|GIA

0.40ct G SI2 Radiant Natural Diamond

VG • G/SI2 • GIA 5172402739

Certificate GIA 5172402739

Diamond specifications and retailer prices

From £522 GBP
$700 USD
As of October 31, 2026
Save £112 GBP (18%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £635 GBP at DreamStone · As of October 31, 2026
View at DreamStone

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5172402739. Listed at 2 retailers as of October 31, 2026, with prices from £522 to £635, a £112 spread on the same certified stone. DreamStone lists it at £635. 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

0.40
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
Polish
Symmetry
Fluorescence
OriginNatural
Grading LabGIA
CertificateGIA 5172402739
Dimensions4.81 × 3.74 mm
L/W Ratio1.29
Top View
4.81 mm3.74 mm0.40 ctG / SI2
OriginNatural
CutVery Good
CertificateGIA 5172402739
Side View
Table 66.0%CrownGirdlePavilionCuletDepth 74.8%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 31
Current: £635 GBP|Low: £516 GBP|High: £635 GBP|Avg: £588 GBP
DreamStone
Retailer 2
September 23, 2026
Retailer 2£522 GBP
DreamStone£635 GBP

3 data points across 2 retailers

2 retailers£522 GBP to £635 GBP

C
Cheapest Retailer
-
£522 GBP
$700 USD
Most Expensive
D
DreamStone
01V3993 · Oct 31
£635 GBP
$851 USD
View
1 more retailer has this diamond
Prices start from £522 GBPSave up to £112 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.

C
0.40ct Radiant
£522 GBP