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Radiant|Natural|GIA

0.80ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2458212129

Certificate GIA 2458212129

Diamond specifications and retailer prices

From £1,256 GBP
$1,685 USD
As of October 28, 2026
Save £1,387 GBP (52%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,642 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.8ct natural radiant diamond

This 0.8ct 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 2458212129. Listed at 4 retailers as of October 28, 2026, with prices from £1,256 to £2,642, a £1,387 spread on the same certified stone. MOH London lists it at £2,642. 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

0.80
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2458212129
Dimensions6.47 × 4.90 × 3.32 mm
L/W Ratio1.32
Top View
6.47 mm4.90 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2458212129
Side View
Table 80.0%CrownGirdle: ThinPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £2,642 GBP|Low: £1,256 GBP|High: £2,675 GBP|Avg: £1,887 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 3£1,256 GBP
Retailer 5£1,614 GBP
Retailer 4£1,842 GBP
Retailer 2£2,059 GBP
MOH London£2,642 GBP

21 data points across 5 retailers

4 retailers£1,256 GBP to £2,642 GBP

B+
Cheapest Retailer
-
£1,256 GBP
$1,685 USD
Retailer 2
-
£1,842 GBP
A$3,804 AUD
View
Price last confirmed 35 days ago
B
Retailer 3
-
£2,059 GBP
€2,632 EUR
View
Most Expensive
B
MOH London
38C6892EE · Nov 1
£2,642 GBP
View
3 more retailers have this diamond
Prices start from £1,256 GBPSave up to £1,387 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+
0.80ct Radiant
£1,256 GBP