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Round|Natural|GIA

1.31ct D IF Round Natural Diamond

EX • D/IF • GIA 6551801306

Certificate GIA 6551801306

Diamond specifications and retailer prices

From £7,697 GBP
€9,740 EUR
As of October 29, 2026
Save £9,195 GBP (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £16,892 GBP at Brilliance · As of October 28, 2026
View at Brilliance

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 GIA 6551801306. Listed at 10 retailers as of October 28, 2026, with prices from £7,697 to £16,892, a £9,195 spread on the same certified stone. Brilliance lists it at £16,892. 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
FluorescenceFaint
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551801306
Dimensions6.92 × 6.97 × 4.31 mm
L/W Ratio1.01
Top View
6.92 mm6.97 mm1.31 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551801306
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.0%

Caratlytics Score

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A+
Exceptional
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: £16,892 GBP|Low: £6,666 GBP|High: £16,892 GBP|Avg: £9,383 GBP
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 4£6,666 GBP
Retailer 6£7,461 GBP
Retailer 7£7,697 GBP
Retailer 11£7,782 GBP
Retailer 8£7,930 GBP
Retailer 9£8,040 GBP
Retailer 5£9,088 GBP
Retailer 10£9,144 GBP
Retailer 3£9,227 GBP
Retailer 2£9,564 GBP
Retailer 12£9,655 GBP
Retailer 13£11,933 GBP
Retailer 14£12,667 GBP
Brilliance£16,892 GBP

33 data points across 14 retailers

10 retailers£7,697 GBP to £16,892 GBP

A+
Retailer 1
-
£7,461 GBP
SGD 13,398 SGD
Price last confirmed 17 days ago
A
Retailer 2
-
£7,697 GBP
€9,740 EUR
View
A+
Retailer 3
-
£7,782 GBP
$10,341 USD
View
Retailer 4
-
£7,807 GBP
A$15,960 AUD
View
A
Retailer 5
-
£7,930 GBP
$10,537 USD
View
A+
Retailer 6
-
£8,040 GBP
View
A
Retailer 7
-
£9,088 GBP
$12,076 USD
View
Price last confirmed 7 days ago
A
Retailer 8
-
£9,144 GBP
€11,572 EUR
View
Price last confirmed 6 days ago
Retailer 9
-
£9,564 GBP
View
Most Expensive
B
Brilliance
D46495107 · Oct 28
£16,892 GBP
$22,445 USD
View
9 more retailers have this diamond
Prices start from £7,697 GBPSave up to £9,195 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
£7,697 GBP