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Marquise|Natural|GIA

1.20ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 7556036757

Certificate GIA 7556036757

Diamond specifications and retailer prices

From £1,960 GBP
As of November 6, 2026
Save £2,622 GBP (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,582 GBP at NZ Jewellers · As of November 5, 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 7556036757. Listed at 14 retailers as of November 5, 2026, with prices from £1,960 to £4,582, a £2,622 spread on the same certified stone. NZ Jewellers lists it at £4,582. 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
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7556036757
Dimensions10.68 × 5.62 × 3.52 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Needle, Indented Natural, Natural
Top View
10.68 mm5.62 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7556036757
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.7%

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 6
Current: £1,960 GBP|Low: £1,960 GBP|High: £4,451 GBP|Avg: £2,793 GBP|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1£1,960 GBP
Retailer 5£2,088 GBP
Retailer 7£2,630 GBP
Retailer 3£2,705 GBP
Retailer 6£2,731 GBP
Retailer 2£2,882 GBP
Retailer 4£4,397 GBP

42 data points across 7 retailers

14 retailers£1,960 GBP to £4,582 GBP

B+
Cheapest Retailer
-
£1,960 GBP
B+
Retailer 2
-
£2,088 GBP
View
Final sale: no returns
B+
Retailer 3
-
£2,246 GBP
View
B
Retailer 4
-
£2,335 GBP
View
B
Retailer 5
-
£2,474 GBP
View
B
Retailer 6
-
£2,630 GBP
View
Retailer 7
-
£2,630 GBP
View
Price last confirmed 9 days ago
B
Retailer 8
-
£2,705 GBP
View
B
Retailer 9
-
£2,731 GBP
View
B
Retailer 10
-
£2,737 GBP
View
B
Retailer 11
-
£2,882 GBP
View
B
Retailer 12
-
£3,035 GBP
View
B
Retailer 13
-
£4,397 GBP
View
Most Expensive
B
NZ Jewellers
f7fa9b69-a9b8-4734-8b7a-4ec786ce7843 · Nov 5
£4,582 GBP
$6,133 USD
View
13 more retailers have this diamond
Prices start from £1,960 GBPSave up to £2,622 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
£1,960 GBP