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Radiant|Natural|GIA

0.83ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6415387708

Certificate GIA 6415387708

Diamond specifications and retailer prices

From £652 GBP
$875 USD
As of October 28, 2026
Save £447 GBP (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,099 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 0.83ct natural radiant diamond

This 0.83ct natural radiant sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6415387708. Listed at 7 retailers as of October 28, 2026, with prices from £652 to £1,099, a £447 spread on the same certified stone. Yorxs lists it at £1,099. 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

0.83
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6415387708
Dimensions5.65 × 4.50 × 3.60 mm
L/W Ratio1.26
Top View
5.65 mm4.50 mm0.83 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6415387708
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 80.1%

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: Oct 28
Current: £915 GBP|Low: £652 GBP|High: £1,114 GBP|Avg: £943 GBP|-5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
November 2, 2026
Retailer 2£652 GBP
Retailer 3£813 GBP
Retailer 5£906 GBP
Retailer 1£915 GBP
Retailer 6£936 GBP
Retailer 7£943 GBP
Retailer 4£1,048 GBP
Retailer 8£1,093 GBP
Yorxs£1,099 GBP

25 data points across 9 retailers

7 retailers£652 GBP to £1,099 GBP

A
Cheapest Retailer
-
£652 GBP
$875 USD
Retailer 2
-
£785 GBP
$1,053 USD
View
Price last confirmed 84 days ago
B+
Retailer 3
-
£813 GBP
$1,091 USD
View
B+
Retailer 4
-
£915 GBP
View
Retailer 5
-
£1,048 GBP
A$2,163 AUD
View
Price last confirmed 28 days ago
B+
Retailer 6
-
£1,093 GBP
€1,397 EUR
View
Most Expensive
B+
Yorxs
254C0F237 · Nov 2
£1,099 GBP
€1,404 EUR
View
6 more retailers have this diamond
Prices start from £652 GBPSave up to £447 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
0.83ct Radiant
£652 GBP