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Radiant|Natural|GIA

0.51ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 2536948370

Certificate GIA 2536948370

Diamond specifications and retailer prices

From £318 GBP
As of November 6, 2026
Save £27 GBP (8%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £344 GBP at Michael Trio · As of November 5, 2026
View at Michael Trio

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2536948370. Listed at 2 retailers as of November 5, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.51
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536948370
Dimensions5.09 × 4.05 × 2.75 mm
L/W Ratio1.26
Top View
5.09 mm4.05 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536948370
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.0%

Caratlytics Score

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

Last verified: Nov 6
Current: £344 GBP|Low: £281 GBP|High: £570 GBP|Avg: £413 GBP|-5.9%
Michael Trio
Retailer 2
Retailer 3
October 17, 2026
Retailer 2£318 GBP
Michael Trio£344 GBP
Retailer 3£570 GBP

4 data points across 3 retailers

2 retailers£318 GBP to £344 GBP

B+
Cheapest Retailer
-
£318 GBP
Final sale: no returns
Most Expensive
B+
Michael Trio
4184025124 · Nov 5
£344 GBP
SGD 623 SGD
View
1 more retailer has this diamond
Prices start from £318 GBPSave up to £27 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+
0.51ct Radiant
£318 GBP