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Round|Natural|GIA

4.86ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 5476363128

Certificate GIA 5476363128

Diamond specifications and retailer prices

From £31,076 GBP
As of November 4, 2026
Save £22,334 GBP (42%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £53,410 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 4.86ct natural round diamond

This 4.86ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 5476363128. Listed at 12 retailers as of November 4, 2026, with prices from £31,076 to £53,410, a £22,334 spread on the same certified stone. MOH London lists it at £53,410. 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

4.86
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5476363128
Dimensions10.80 × 10.87 × 6.63 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Top View
10.80 mm10.87 mm4.86 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5476363128
Side View
Table 62.0%Crown 34.5°GirdlePavilion 41.2°Culet: NDepth 61.2%

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: £53,410 GBP|Low: £31,076 GBP|High: £59,689 GBP|Avg: £39,815 GBP|-9.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6£31,076 GBP
Retailer 7£33,227 GBP
Retailer 5£33,458 GBP
Retailer 3£33,968 GBP
Retailer 8£36,675 GBP
Retailer 9£37,764 GBP
Retailer 4£41,283 GBP
Retailer 2£42,674 GBP
MOH London£53,410 GBP

39 data points across 9 retailers

12 retailers£31,076 GBP to £53,410 GBP

B+
Cheapest Retailer
-
£31,076 GBP
B+
Retailer 2
-
£33,227 GBP
View
Retailer 3
-
£33,458 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£33,968 GBP
View
B
Retailer 5
-
£36,675 GBP
View
Retailer 6
-
£39,338 GBP
View
Price last confirmed 69 days ago
Retailer 7
-
£39,338 GBP
View
Price last confirmed 48 days ago
Retailer 8
-
£40,911 GBP
View
Price last confirmed 48 days ago
B
Retailer 9
-
£41,283 GBP
View
Retailer 10
-
£42,485 GBP
View
Price last confirmed 45 days ago
B
Retailer 11
-
£42,674 GBP
View
Most Expensive
B
MOH London
AB9127D19 · Nov 4
£53,410 GBP
View
11 more retailers have this diamond
Prices start from £31,076 GBPSave up to £22,334 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+
4.86ct Round
£31,076 GBP