Princess|Natural|GIA

1.30ct I SI1 Princess Natural Diamond

ID • I/SI1 • GIA 1559124934

Certificate GIA 1559124934

Diamond specifications and retailer prices

From £1,839 GBP
$2,464 USD
As of October 31, 2026
Save £1,652 GBP (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,165 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.3ct natural princess diamond

This 1.3ct natural princess sits in the one-and-a-quarter to one-and-a-half 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 1559124934. Listed at 12 retailers as of October 31, 2026, with a 90% 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

1.30
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559124934
Dimensions6.15 × 6.09 × 4.26 mm
L/W Ratio1.01
Top View
6.15 mm6.09 mm1.30 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559124934
Side View
Table 73.0%CrownGirdlePavilionCulet: NoneDepth 70.0%

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: Oct 31
Current: £3,491 GBP|Low: £1,685 GBP|High: £3,533 GBP|Avg: £2,334 GBP|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6£1,839 GBP
Retailer 5£1,918 GBP
Retailer 2£2,130 GBP
Retailer 7£2,232 GBP
Retailer 3£2,449 GBP
Retailer 4£2,489 GBP
Retailer 1£3,491 GBP

43 data points across 7 retailers

12 retailers£1,839 GBP to £3,491 GBP

A
Cheapest Retailer
-
£1,839 GBP
$2,464 USD
Final sale: no returns
A
Retailer 2
-
£1,918 GBP
$2,570 USD
View
Retailer 3
-
£1,993 GBP
$2,670 USD
View
Price last confirmed 25 days ago
Retailer 4
-
£1,993 GBP
$2,670 USD
View
Price last confirmed 25 days ago
Retailer 5
-
£2,069 GBP
$2,772 USD
View
Price last confirmed 33 days ago
A
Retailer 6
-
£2,130 GBP
View
Retailer 7
-
£2,232 GBP
A$4,602 AUD
View
Price last confirmed 25 days ago
Retailer 8
-
£2,299 GBP
$3,080 USD
View
Price last confirmed 34 days ago
B+
Retailer 9
-
£2,449 GBP
ZAR 53,010 ZAR
View
B+
Retailer 10
-
£2,489 GBP
€3,176 EUR
View
B
Retailer 11
-
£3,491 GBP
View
Most Expensive
NZ Jewellers
4c8e20a8-7d29-43ba-a84d-8a9ae0f6a99d · Sep 30
£4,165 GBP
$5,581 USD
View
Price last confirmed 32 days ago
11 more retailers have this diamond
Prices start from £1,839 GBPSave up to £1,652 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
1.30ct Princess
£1,839 GBP