CaratHunter
Plans
Marquise|Natural|GIA

1.20ct J IF Marquise Natural Diamond

EX • J/IF • GIA 1557156366

Certificate GIA 1557156366

Diamond specifications and retailer prices

From £3,007 GBP
$4,035 USD
As of November 1, 2026
Save £3,054 GBP (50%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £6,365 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557156366. Listed at 24 retailers as of November 1, 2026, with a 102% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
J
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1557156366
Dimensions10.39 × 5.04 × 3.24 mm
L/W Ratio2.06
Girdle conditionVery Thick
Top View
10.39 mm5.04 mm1.20 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1557156366
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £6,365 GBP|Low: £2,917 GBP|High: £6,365 GBP|Avg: £3,999 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 3, 2026
Retailer 18£3,007 GBP
Retailer 17£3,182 GBP
Retailer 3£3,256 GBP
Retailer 13£3,409 GBP
Retailer 4£3,447 GBP
Retailer 11£3,447 GBP
Retailer 5£3,487 GBP
Retailer 9£3,502 GBP
Retailer 16£3,649 GBP
Retailer 7£3,718 GBP
Retailer 8£3,718 GBP
Retailer 2£3,799 GBP
Retailer 19£3,836 GBP
Retailer 6£3,845 GBP
Retailer 10£3,978 GBP
Retailer 14£4,306 GBP
Retailer 15£4,678 GBP
Retailer 12£6,061 GBP
NZ Jewellers£6,365 GBP

36 data points across 19 retailers

24 retailers£3,007 GBP to £6,061 GBP

B+
Cheapest Retailer
-
£3,007 GBP
$4,035 USD
B+
Retailer 2
-
£3,182 GBP
$4,270 USD
View
Final sale: no returns
B+
Retailer 3
-
£3,256 GBP
$4,370 USD
View
B+
Retailer 4
-
£3,409 GBP
View
B+
Retailer 5
-
£3,423 GBP
$4,594 USD
View
Retailer 6
-
£3,447 GBP
$4,626 USD
View
Price last confirmed 42 days ago
Retailer 7
-
£3,447 GBP
$4,626 USD
View
Price last confirmed 33 days ago
Retailer 8
-
£3,447 GBP
$4,626 USD
View
Price last confirmed 26 days ago
Retailer 9
-
£3,447 GBP
$4,626 USD
View
Price last confirmed 26 days ago
B+
Retailer 10
-
£3,487 GBP
$4,680 USD
View
B+
Retailer 11
-
£3,502 GBP
$4,700 USD
View
B+
Retailer 12
-
£3,649 GBP
$4,897 USD
View
B
Retailer 13
-
£3,718 GBP
$4,990 USD
View
B
Retailer 14
-
£3,718 GBP
$4,990 USD
View
B+
Retailer 15
-
£3,799 GBP
View
Retailer 16
-
£3,836 GBP
A$7,920 AUD
View
Price last confirmed 24 days ago
B
Retailer 17
-
£3,845 GBP
$5,160 USD
View
B
Retailer 18
-
£3,917 GBP
$5,256 USD
View
Retailer 19
-
£3,978 GBP
$5,338 USD
View
Price last confirmed 25 days ago
Retailer 20
-
£4,201 GBP
$5,637 USD
View
Price last confirmed 19 days ago
B
Retailer 21
-
£4,306 GBP
€5,503 EUR
View
B
Retailer 22
-
£4,678 GBP
ZAR 101,409 ZAR
View
B
Retailer 23
-
£6,061 GBP
View
Most Expensive
NZ Jewellers
fd7d0ccf-3416-4fc6-8306-0b7704add650 · Sep 29
£6,365 GBP
$8,541 USD
View
Price last confirmed 34 days ago
23 more retailers have this diamond
Prices start from £3,007 GBPSave up to £3,054 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 Marquise
£3,007 GBP