CaratHunter
Plans
Princess|Natural|GIA

1.21ct J SI1 Princess Natural Diamond

EX • J/SI1 • GIA 1528796949

Certificate GIA 1528796949

Diamond specifications and retailer prices

From £980 GBP
As of November 5, 2026
Save £830 GBP (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,810 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural princess diamond

This 1.21ct natural princess sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1528796949. Listed at 14 retailers as of November 5, 2026, with prices from £980 to £1,810, a £830 spread on the same certified stone. Wholesale Diamonds Direct lists it at £1,810. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle29.85°
Pavilion angle38.03°
OriginNatural
Grading LabGIA
CertificateGIA 1528796949
Dimensions5.71 × 5.70 × 4.12 mm
L/W Ratio1.00
Culet sizeNone
Top View
5.71 mm5.70 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1528796949
Side View
Table 73.0%Crown 29.85°Girdle: THK-VTKPavilion 38.03°Culet: NoneDepth 72.3%

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 5
Current: £1,053 GBP|Low: £961 GBP|High: £1,878 GBP|Avg: £1,294 GBP|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 5, 2026
Retailer 10£980 GBP
Retailer 9£1,001 GBP
Retailer 1£1,053 GBP
Retailer 11£1,080 GBP
Retailer 4£1,132 GBP
Retailer 3£1,177 GBP
Retailer 6£1,241 GBP
Retailer 12£1,275 GBP
Retailer 7£1,352 GBP
Retailer 13£1,352 GBP
Retailer 2£1,360 GBP
Retailer 8£1,397 GBP
Retailer 5£1,783 GBP
Wholesale Diamonds Direct£1,810 GBP

33 data points across 14 retailers

14 retailers£980 GBP to £1,810 GBP

A
Cheapest Retailer
-
£980 GBP
A
Retailer 2
-
£1,001 GBP
View
A
Retailer 3
-
£1,053 GBP
View
A
Retailer 4
-
£1,080 GBP
View
A
Retailer 5
-
£1,177 GBP
View
B+
Retailer 6
-
£1,236 GBP
View
B+
Retailer 7
-
£1,241 GBP
View
B+
Retailer 8
-
£1,275 GBP
View
B+
Retailer 9
-
£1,352 GBP
View
B+
Retailer 10
-
£1,352 GBP
View
B+
Retailer 11
-
£1,360 GBP
View
B+
Retailer 12
-
£1,397 GBP
View
B
Retailer 13
-
£1,783 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
262940209 · Nov 6
£1,810 GBP
$2,422 USD
View
13 more retailers have this diamond
Prices start from £980 GBPSave up to £830 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
1.21ct Princess
£980 GBP