Princess|Natural|GIA

1.20ct I SI1 Princess Natural Diamond

ID • I/SI1 • GIA 1538683221

Certificate GIA 1538683221

Diamond specifications and retailer prices

From £1,620 GBP
As of November 6, 2026
Save £1,449 GBP (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,852 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.2ct natural princess diamond

This 1.2ct natural princess sits in the classic one-carat band, graded I 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 1538683221. Listed at 13 retailers as of November 4, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1538683221
Dimensions5.62 × 5.55 × 4.10 mm
L/W Ratio1.01
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
5.62 mm5.55 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538683221
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 73.8%

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 6
Current: £1,902 GBP|Low: £1,558 GBP|High: £3,267 GBP|Avg: £2,193 GBP|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 6£1,620 GBP
Retailer 5£1,756 GBP
Retailer 1£1,902 GBP
Retailer 3£2,143 GBP
Retailer 2£2,181 GBP
Retailer 7£2,268 GBP
Retailer 4£3,068 GBP

46 data points across 7 retailers

13 retailers£1,620 GBP to £3,068 GBP

A
Cheapest Retailer
-
£1,620 GBP
Final sale: no returns
A
Retailer 2
-
£1,756 GBP
View
Retailer 3
-
£1,842 GBP
View
Price last confirmed 30 days ago
Retailer 4
-
£1,842 GBP
View
Price last confirmed 30 days ago
B+
Retailer 5
-
£1,902 GBP
View
Retailer 6
-
£1,928 GBP
View
Price last confirmed 39 days ago
Retailer 7
-
£2,107 GBP
View
Price last confirmed 12 days ago
Retailer 8
-
£2,126 GBP
View
Price last confirmed 39 days ago
B+
Retailer 9
-
£2,143 GBP
View
B+
Retailer 10
-
£2,181 GBP
View
Retailer 11
-
£2,268 GBP
View
Price last confirmed 31 days ago
B
Retailer 12
-
£3,068 GBP
View
Most Expensive
NZ Jewellers
33c14678-4a0f-485e-b207-3047a3842468 · Sep 30
£3,852 GBP
$5,156 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from £1,620 GBPSave up to £1,449 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
1.20ct Princess
£1,620 GBP