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5.58ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2135778234

Certificate GIA 2135778234

Diamond specifications and retailer prices

From £39,705 GBP
$53,440 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: £39,705 GBP at Rare Carat
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 Rare Carat

About this 5.58ct natural round diamond

This 5.58ct natural round sits in the over five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2135778234. Listed at a single retailer as of November 4, 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

5.58
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2135778234
Dimensions11.35 × 11.26 × 7.06 mm
L/W Ratio1.01
Top View
11.35 mm11.26 mm5.58 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2135778234
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCuletDepth 62.5%

Caratlytics Score

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

Last verified: Nov 4
Current: £39,713 GBP|Low: £39,713 GBP|High: £39,713 GBP|Avg: £39,713 GBP
October 28, 2026
Rare Carat£39,713 GBP

1 data point across 1 retailer

1 retailer

B+
Rare Carat
19231 · Nov 4
£39,705 GBP
$53,440 USD
View

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B+
5.58ct Round
£39,705 GBP