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Princess|Natural|GIA

1.02ct J SI1 Princess Natural Diamond

GD • J/SI1 • GIA 2566223418

Certificate GIA 2566223418

Diamond specifications and retailer prices

From £876 GBP
$1,175 USD
As of November 1, 2026
Save £204 GBP (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,080 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.02ct natural princess diamond

This 1.02ct natural princess sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566223418. Listed at 6 retailers as of October 31, 2026, with prices from £876 to £1,080, a £204 spread on the same certified stone. Blue Nile lists it at £1,080. 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

1.02
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566223418
Dimensions5.41 × 5.25 × 3.92 mm
L/W Ratio1.03
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
5.41 mm5.25 mm1.02 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566223418
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 74.7%

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: £1,080 GBP|Low: £777 GBP|High: £1,133 GBP|Avg: £956 GBP|-4.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 3£876 GBP
Retailer 4£888 GBP
Retailer 6£897 GBP
Retailer 2£982 GBP
Retailer 5£1,009 GBP
Blue Nile£1,080 GBP

39 data points across 6 retailers

6 retailers£876 GBP to £1,080 GBP

A
Cheapest Retailer
-
£876 GBP
$1,175 USD
B+
Retailer 2
-
£888 GBP
$1,192 USD
View
Final sale: no returns
B+
Retailer 3
-
£897 GBP
$1,204 USD
View
B+
Retailer 4
-
£982 GBP
View
B+
Retailer 5
-
£1,009 GBP
SGD 1,830 SGD
View
Most Expensive
B+
Blue Nile
30139253 · Oct 31
£1,080 GBP
$1,449 USD
View
5 more retailers have this diamond
Prices start from £876 GBPSave up to £204 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 Princess
£876 GBP