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Radiant|Natural|GIA

1.30ct H SI1 Radiant Natural Diamond

ID • H/SI1 • GIA 1558218286

Certificate GIA 1558218286

Diamond specifications and retailer prices

From £3,534 GBP
$4,730 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: £3,534 GBP at Shane Co
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Shane Co

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half 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 1558218286. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.30
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558218286
Dimensions7.63 × 5.45 × 3.62 mm
L/W Ratio1.40
Girdle conditionThick
Top View
7.63 mm5.45 mm1.30 ctH / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558218286
Side View
Table 65.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 66.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £6,220 GBP|Low: £2,923 GBP|High: £6,307 GBP|Avg: £4,129 GBP|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Shane Co
July 18, 2026
Retailer 5£2,923 GBP
Retailer 2£3,027 GBP
Retailer 7£3,521 GBP
Shane Co£3,534 GBP
Retailer 6£3,784 GBP
Retailer 4£4,047 GBP
Retailer 8£4,146 GBP
Retailer 3£4,273 GBP
Retailer 1£6,220 GBP

20 data points across 9 retailers

1 retailer

B
Shane Co
26G06XC · Nov 6
£3,534 GBP
$4,730 USD
View

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
1.30ct Radiant
£3,534 GBP