Round|Natural|GIA

23.69ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5182206523

Certificate GIA 5182206523

Diamond specifications and retailer prices

From £594,598 GBP
As of October 31, 2026
Save £84,064 GBP (12%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £678,662 GBP at Yorxs · As of November 1, 2026
View at Yorxs

About this 23.69ct natural round diamond

This 23.69ct natural round sits in the over five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5182206523. Listed at 2 retailers as of October 31, 2026, with a relatively tight 14% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

23.69
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5182206523
Dimensions18.79 × 18.83 × 11.29 mm
L/W Ratio1.00
Top View
18.79 mm18.83 mm23.69 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5182206523
Side View
Table 58.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 60.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: £594,598 GBP|Low: £588,837 GBP|High: £683,460 GBP|Avg: £631,423 GBP|+1.0%
Retailer 1
Yorxs
November 1, 2026
Retailer 1£594,598 GBP
Yorxs£678,662 GBP

25 data points across 2 retailers

2 retailers£594,598 GBP to £678,662 GBP

B
Cheapest Retailer
-
£594,598 GBP
Most Expensive
B
Yorxs
15070-1 · Nov 1
£678,662 GBP
€866,031 EUR
View
1 more retailer has this diamond
Prices start from £594,598 GBPSave up to £84,064 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
23.69ct Round
£594,598 GBP