CaratHunter
Plans
Marquise|Natural|GIA

1.20ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 7556569825

Certificate GIA 7556569825

Diamond specifications and retailer prices

From £1,775 GBP
As of November 4, 2026
Save £2,731 GBP (61%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,506 GBP at NZ Jewellers · As of November 3, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556569825. Listed at 18 retailers as of November 3, 2026, with prices from £1,775 to £4,506, a £2,731 spread on the same certified stone. NZ Jewellers lists it at £4,506. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
OriginNatural
Grading LabGIA
CertificateGIA 7556569825
Dimensions10.40 × 5.46 × 3.42 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Natural
Top View
10.40 mm5.46 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 7556569825
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.6%

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 4
Current: £4,506 GBP|Low: £1,773 GBP|High: £4,506 GBP|Avg: £2,352 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
November 6, 2026
Retailer 17£1,775 GBP
Retailer 2£1,802 GBP
Retailer 9£1,833 GBP
Retailer 10£1,961 GBP
Retailer 6£1,987 GBP
Retailer 14£2,031 GBP
Retailer 11£2,148 GBP
Retailer 3£2,155 GBP
Retailer 5£2,155 GBP
Retailer 7£2,161 GBP
Retailer 12£2,203 GBP
Retailer 4£2,238 GBP
Retailer 13£2,253 GBP
Retailer 15£2,281 GBP
Retailer 8£2,421 GBP
Retailer 18£2,513 GBP
Retailer 16£3,595 GBP
NZ Jewellers£4,506 GBP

22 data points across 18 retailers

18 retailers£1,775 GBP to £4,506 GBP

A
Cheapest Retailer
-
£1,775 GBP
B+
Retailer 2
-
£1,802 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,833 GBP
View
B+
Retailer 4
-
£1,961 GBP
View
B+
Retailer 5
-
£1,987 GBP
View
B+
Retailer 6
-
£2,031 GBP
View
B+
Retailer 7
-
£2,148 GBP
View
B+
Retailer 8
-
£2,155 GBP
View
Retailer 9
-
£2,155 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£2,161 GBP
View
B
Retailer 11
-
£2,203 GBP
View
B
Retailer 12
-
£2,238 GBP
View
B+
Retailer 13
-
£2,253 GBP
View
B+
Retailer 14
-
£2,281 GBP
View
B
Retailer 15
-
£2,421 GBP
View
B+
Retailer 16
-
£2,513 GBP
View
B
Retailer 17
-
£3,595 GBP
View
Most Expensive
C
NZ Jewellers
fa24156f-1213-4df5-95bb-c1e42a893942 · Nov 3
£4,506 GBP
$6,031 USD
View
17 more retailers have this diamond
Prices start from £1,775 GBPSave up to £2,731 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 Marquise
£1,775 GBP