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3.05ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6555495361

Certificate GIA 6555495361

Diamond specifications and retailer prices

From £16,179 GBP
As of November 5, 2026
Save £4,778 GBP (23%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £20,958 GBP at Yorxs · As of November 5, 2026
View at Yorxs

About this 3.05ct natural round diamond

This 3.05ct 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 6555495361. Listed at 3 retailers as of November 5, 2026, with prices from £16,179 to £20,958, a £4,778 spread on the same certified stone. Yorxs lists it at £20,958. 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

3.05
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555495361
Dimensions9.16 × 9.23 × 5.73 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
9.16 mm9.23 mm3.05 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555495361
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £19,370 GBP|Low: £16,179 GBP|High: £22,686 GBP|Avg: £20,134 GBP|-6.7%
Retailer 1
Retailer 2
Yorxs
November 6, 2026
Retailer 2£16,179 GBP
Retailer 1£19,370 GBP
Yorxs£20,958 GBP

45 data points across 3 retailers

3 retailers£16,179 GBP to £20,958 GBP

A
Cheapest Retailer
-
£16,179 GBP
B+
Retailer 2
-
£19,370 GBP
View
Most Expensive
B
Yorxs
D7023101 · Nov 5
£20,958 GBP
€26,864 EUR
View
2 more retailers have this diamond
Prices start from £16,179 GBPSave up to £4,778 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.

A
3.05ct Round
£16,179 GBP