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Princess|Natural|GIA

1.20ct J SI1 Princess Natural Diamond

GD • J/SI1 • GIA 1403612939

Certificate GIA 1403612939

Diamond specifications and retailer prices

From £1,783 GBP
₹227,528 INR
As of November 1, 2026
Save £2,319 GBP (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,268 GBP at NZ Jewellers · As of October 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 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 1403612939. Listed at 22 retailers as of October 26, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1403612939
Dimensions5.86 × 5.71 × 4.11 mm
L/W Ratio1.03
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Pinpoint
Top View
5.86 mm5.71 mm1.20 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1403612939
Side View
Table 73.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,539 GBP|Low: £1,711 GBP|High: £4,141 GBP|Avg: £2,444 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 5£1,783 GBP
Retailer 8£1,796 GBP
Retailer 11£2,175 GBP
Retailer 6£2,212 GBP
Retailer 12£2,217 GBP
Retailer 2£2,261 GBP
Retailer 1£2,539 GBP
Retailer 4£2,544 GBP
Retailer 3£2,617 GBP
Retailer 9£2,867 GBP
Retailer 7£3,011 GBP
Retailer 10£4,102 GBP

35 data points across 12 retailers

22 retailers£1,783 GBP to £4,102 GBP

B
Cheapest Retailer
-
£1,783 GBP
₹227,528 INR
B
Retailer 2
-
£1,796 GBP
HK$18,800 HKD
View
B
Retailer 3
-
£2,175 GBP
$2,914 USD
View
B
Retailer 4
-
£2,212 GBP
$2,964 USD
View
B
Retailer 5
-
£2,217 GBP
$2,970 USD
View
C
Retailer 6
-
£2,261 GBP
$3,029 USD
View
Final sale: no returns
C
Retailer 7
-
£2,303 GBP
A$4,748 AUD
View
C
Retailer 8
-
£2,370 GBP
$3,175 USD
View
C
Retailer 9
-
£2,449 GBP
$3,282 USD
View
C
Retailer 10
-
£2,449 GBP
$3,282 USD
View
C
Retailer 11
-
£2,500 GBP
SGD 4,527 SGD
View
B
Retailer 12
-
£2,539 GBP
View
C
Retailer 13
-
£2,544 GBP
$3,409 USD
View
C
Retailer 14
-
£2,557 GBP
$3,426 USD
View
C
Retailer 15
-
£2,605 GBP
$3,490 USD
View
Retailer 16
-
£2,617 GBP
A$5,395 AUD
View
Price last confirmed 25 days ago
C
Retailer 17
-
£2,826 GBP
$3,787 USD
View
C
Retailer 18
-
£2,867 GBP
€3,659 EUR
View
C
Retailer 19
-
£3,011 GBP
ZAR 65,179 ZAR
View
C
Retailer 20
-
£3,473 GBP
$4,653 USD
View
C
Retailer 21
-
£4,102 GBP
View
Most Expensive
NZ Jewellers
d033cc6e-2555-4c60-9e0f-30551b3ec66c · Oct 30
£4,268 GBP
$5,719 USD
View
Price under review
21 more retailers have this diamond
Prices start from £1,783 GBPSave up to £2,319 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.

B
1.20ct Princess
£1,783 GBP