CaratHunter
Plans
Round|Natural|IGI

1.31ct D IF Round Natural Diamond

EX • D/IF • IGI 756554865

Shape and cutting style on the report: Round brilliant

Certificate IGI 756554865

Diamond specifications and retailer prices

From £6,523 GBP
SGD 11,713 SGD
As of October 29, 2026
Save £6,139 GBP (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £12,662 GBP at NZ Jewellers · As of October 27, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 756554865. Listed at 8 retailers as of October 27, 2026, with prices from £6,523 to £12,662, a £6,139 spread on the same certified stone. NZ Jewellers lists it at £12,662. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 756554865
Dimensions6.95 × 6.99 × 4.37 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.95 mm6.99 mm1.31 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 756554865
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.7%

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 29
Current: £12,662 GBP|Low: £5,661 GBP|High: £12,662 GBP|Avg: £8,140 GBP|+5.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 5£6,523 GBP
Retailer 8£6,793 GBP
Retailer 2£6,821 GBP
Retailer 7£7,571 GBP
Retailer 6£7,688 GBP
Retailer 4£8,071 GBP
Retailer 3£9,941 GBP
NZ Jewellers£12,662 GBP

44 data points across 8 retailers

8 retailers£6,523 GBP to £12,662 GBP

A
Cheapest Retailer
-
£6,523 GBP
SGD 11,713 SGD
A
Retailer 2
-
£6,793 GBP
$9,026 USD
View
Final sale: no returns
A
Retailer 3
-
£6,821 GBP
View
A
Retailer 4
-
£7,571 GBP
$10,060 USD
View
A
Retailer 5
-
£7,688 GBP
$10,215 USD
View
A
Retailer 6
-
£8,071 GBP
€10,214 EUR
View
A
Retailer 7
-
£9,941 GBP
View
Most Expensive
B+
NZ Jewellers
1d74bd53-5d37-4414-b54c-5a443e32f71b · Oct 27
£12,662 GBP
$16,825 USD
View
7 more retailers have this diamond
Prices start from £6,523 GBPSave up to £6,139 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
£6,523 GBP