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Round|Natural|GIA

1.31ct D I1 Round Natural Diamond

EX • D/I1 • GIA 1345939790

Certificate GIA 1345939790

Diamond specifications and retailer prices

From £2,485 GBP
$3,329 USD
As of October 30, 2026
Save £2,179 GBP (47%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £4,664 GBP at NZ Jewellers · As of October 30, 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 D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1345939790. Listed at 4 retailers as of October 30, 2026, with prices from £2,485 to £4,664, a £2,179 spread on the same certified stone. NZ Jewellers lists it at £4,664. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
D
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1345939790
Dimensions6.96 × 6.97 × 4.33 mm
L/W Ratio1.00
Top View
6.96 mm6.97 mm1.31 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1345939790
Side View
Table 59.0%CrownGirdlePavilionCulet: 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: Oct 30
Current: £4,664 GBP|Low: £2,449 GBP|High: £4,664 GBP|Avg: £2,797 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 4£2,485 GBP
Retailer 3£2,677 GBP
Retailer 2£2,780 GBP
NZ Jewellers£4,664 GBP

5 data points across 4 retailers

4 retailers£2,485 GBP to £4,664 GBP

A
Cheapest Retailer
-
£2,485 GBP
$3,329 USD
A
Retailer 2
-
£2,677 GBP
$3,587 USD
View
B+
Retailer 3
-
£2,780 GBP
$3,725 USD
View
Most Expensive
B
NZ Jewellers
27e68233-a205-48b4-9201-1e77f4f9566b · Oct 30
£4,664 GBP
$6,249 USD
View
3 more retailers have this diamond
Prices start from £2,485 GBPSave up to £2,179 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
1.31ct Round
£2,485 GBP