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Round|Natural|GIA

1.31ct K I1 Round Natural Diamond

VG • K/I1 • GIA 6332787138

Certificate GIA 6332787138

Diamond specifications and retailer prices

From £1,493 GBP
As of November 4, 2026
Save £2,292 GBP (61%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,785 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural round diamond

This 1.31ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and I1 clarity (included), with a very-good cut grade and certified by GIA 6332787138. Listed at 8 retailers as of November 4, 2026, with prices from £1,493 to £3,785, a £2,292 spread on the same certified stone. NZ Jewellers lists it at £3,785. 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

1.31
Carat
K
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6332787138
Dimensions6.90 × 6.86 × 4.37 mm
L/W Ratio1.01
Top View
6.90 mm6.86 mm1.31 ctK / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6332787138
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 63.6%

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: £3,785 GBP|Low: £1,389 GBP|High: £3,901 GBP|Avg: £2,034 GBP|-3.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 3£1,389 GBP
Retailer 4£1,493 GBP
Retailer 9£1,635 GBP
Retailer 5£1,810 GBP
Retailer 7£1,810 GBP
Retailer 11£1,857 GBP
Retailer 6£1,894 GBP
Retailer 8£2,089 GBP
Retailer 2£2,242 GBP
Retailer 10£2,262 GBP
NZ Jewellers£3,785 GBP

17 data points across 11 retailers

8 retailers£1,493 GBP to £3,785 GBP

B+
Cheapest Retailer
-
£1,493 GBP
B+
Retailer 2
-
£1,635 GBP
View
B+
Retailer 3
-
£1,810 GBP
View
Retailer 4
-
£1,810 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£1,894 GBP
View
B
Retailer 6
-
£2,089 GBP
View
B
Retailer 7
-
£2,242 GBP
View
Most Expensive
C
NZ Jewellers
98e8e96b-62c4-4cf5-99f4-b36f66dbe740 · Nov 5
£3,785 GBP
$5,094 USD
View
7 more retailers have this diamond
Prices start from £1,493 GBPSave up to £2,292 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+
1.31ct Round
£1,493 GBP