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Round|Natural|GIA

3.06ct K SI1 Round Natural Diamond

GD • K/SI1 • GIA 1226932635

Certificate GIA 1226932635

Diamond specifications and retailer prices

From £10,935 GBP
As of November 4, 2026
Save £3,646 GBP (25%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £16,184 GBP at Cape Diamonds · As of October 27, 2026
View at Cape Diamonds

About this 3.06ct natural round diamond

This 3.06ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 1226932635. Listed at 6 retailers as of November 4, 2026, with a 33% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.06
Carat
K
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle35.5°
OriginNatural
Grading LabGIA
CertificateGIA 1226932635
Dimensions9.26 × 9.29 × 5.78 mm
L/W Ratio1.00
Top View
9.26 mm9.29 mm3.06 ctK / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1226932635
Side View
Table 62.0%Crown 35.5°Girdle: MED-STKPavilionCulet: Very SmallDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £16,184 GBP|Low: £10,822 GBP|High: £18,334 GBP|Avg: £13,164 GBP|-11.7%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4£10,935 GBP
Retailer 5£11,496 GBP
Retailer 6£11,779 GBP
Retailer 2£13,877 GBP
Retailer 3£14,580 GBP
Cape Diamonds£16,184 GBP

41 data points across 6 retailers

6 retailers£10,935 GBP to £14,580 GBP

B+
Cheapest Retailer
-
£10,935 GBP
B+
Retailer 2
-
£11,496 GBP
View
B+
Retailer 3
-
£11,779 GBP
View
B+
Retailer 4
-
£13,877 GBP
View
B+
Retailer 5
-
£14,580 GBP
View
Most Expensive
Cape Diamonds
cert_1226932635 · Oct 27
£16,184 GBP
ZAR 351,897 ZAR
View
Price last confirmed 10 days ago
5 more retailers have this diamond
Prices start from £10,935 GBPSave up to £3,646 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+
3.06ct Round
£10,935 GBP