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Round|Natural|GIA

4.02ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2125192217

Certificate GIA 2125192217

Diamond specifications and retailer prices

From £33,504 GBP
As of November 6, 2026
Save £3,150 GBP (9%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £36,654 GBP at Yorxs · As of November 3, 2026
View at Yorxs

About this 4.02ct natural round diamond

This 4.02ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2125192217. Listed at 2 retailers as of November 3, 2026, with a relatively tight 9% 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

4.02
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2125192217
Dimensions10.10 × 10.14 × 6.27 mm
L/W Ratio1.00
Top View
10.10 mm10.14 mm4.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2125192217
Side View
Table 59.0%CrownGirdlePavilionCuletDepth 61.9%

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: £33,504 GBP|Low: £33,230 GBP|High: £36,748 GBP|Avg: £35,088 GBP|+0.8%
Retailer 1
Yorxs
November 6, 2026
Retailer 1£33,504 GBP
Yorxs£36,654 GBP

34 data points across 2 retailers

2 retailers£33,504 GBP to £36,654 GBP

B
Cheapest Retailer
-
£33,504 GBP
Most Expensive
B
Yorxs
DC8048 · Nov 3
£36,654 GBP
€46,984 EUR
View
1 more retailer has this diamond
Prices start from £33,504 GBPSave up to £3,150 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
4.02ct Round
£33,504 GBP