CaratHunter
Plans
Round|Natural|GIA

3.28ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6535487768

Certificate GIA 6535487768

Diamond specifications and retailer prices

From £16,538 GBP
As of November 6, 2026
Save £10,407 GBP (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £26,945 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.28ct natural round diamond

This 3.28ct 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 6535487768. Listed at 12 retailers as of November 4, 2026, with prices from £16,538 to £26,945, a £10,407 spread on the same certified stone. MOH London lists it at £26,945. 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

3.28
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6535487768
Dimensions9.50 × 9.44 × 5.89 mm
L/W Ratio1.01
Star length50%
Top View
9.50 mm9.44 mm3.28 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535487768
Side View
Table 57.0%Crown 35.5°Girdle: MED-SLIPavilion 40.8°Culet: NoneDepth 62.2%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £26,945 GBP|Low: £16,462 GBP|High: £28,237 GBP|Avg: £19,695 GBP|+6.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£16,538 GBP
Retailer 2£17,342 GBP
Retailer 3£17,798 GBP
Retailer 11£17,918 GBP
Retailer 8£17,992 GBP
Retailer 5£18,274 GBP
Retailer 4£20,268 GBP
Retailer 7£20,382 GBP
Retailer 10£20,603 GBP
Retailer 6£21,028 GBP
MOH London£26,945 GBP

29 data points across 11 retailers

12 retailers£16,538 GBP to £26,945 GBP

A
Cheapest Retailer
-
£16,538 GBP
A
Retailer 2
-
£17,342 GBP
View
A
Retailer 3
-
£17,992 GBP
View
B+
Retailer 4
-
£18,274 GBP
View
Retailer 5
-
£19,411 GBP
View
Price last confirmed 45 days ago
Retailer 6
-
£20,157 GBP
View
Price last confirmed 45 days ago
B+
Retailer 7
-
£20,268 GBP
View
B+
Retailer 8
-
£20,382 GBP
View
Retailer 9
-
£20,603 GBP
View
Price last confirmed 42 days ago
B+
Retailer 10
-
£21,028 GBP
View
Retailer 11
-
£22,996 GBP
View
Price last confirmed 42 days ago
Most Expensive
B
MOH London
75F4F6B9A · Nov 4
£26,945 GBP
View
11 more retailers have this diamond
Prices start from £16,538 GBPSave up to £10,407 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
3.28ct Round
£16,538 GBP