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Round|Natural|GIA

1.02ct J IF Round Natural Diamond

EX • J/IF • GIA 1549645877

Certificate GIA 1549645877

Diamond specifications and retailer prices

From £1,690 GBP
As of November 1, 2026
Save £402 GBP (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,092 GBP at Blue Nile · As of November 3, 2026
View at Blue Nile

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1549645877. Listed at 6 retailers as of November 1, 2026, with prices from £1,690 to £2,092, a £402 spread on the same certified stone. Blue Nile lists it at £2,092. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1549645877
Dimensions6.37 × 6.42 × 4.01 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.37 mm6.42 mm1.02 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1549645877
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 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: Nov 1
Current: £2,092 GBP|Low: £1,560 GBP|High: £2,329 GBP|Avg: £1,901 GBP|-10.1%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 3£1,690 GBP
Retailer 4£1,747 GBP
Retailer 6£1,768 GBP
Retailer 7£1,791 GBP
Retailer 2£1,883 GBP
Retailer 5£2,009 GBP
Blue Nile£2,092 GBP

37 data points across 7 retailers

6 retailers£1,690 GBP to £2,092 GBP

A
Cheapest Retailer
-
£1,690 GBP
A
Retailer 2
-
£1,747 GBP
View
A
Retailer 3
-
£1,791 GBP
View
A
Retailer 4
-
£1,883 GBP
View
A
Retailer 5
-
£2,009 GBP
View
Most Expensive
B+
Blue Nile
28271439 · Nov 3
£2,092 GBP
$2,816 USD
View
5 more retailers have this diamond
Prices start from £1,690 GBPSave up to £402 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
1.02ct Round
£1,690 GBP