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Marquise|Natural|GIA

1.20ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6561164191

Certificate GIA 6561164191

Diamond specifications and retailer prices

From £1,905 GBP
As of November 4, 2026
Save £2,086 GBP (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,991 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 6561164191. Listed at 20 retailers as of November 3, 2026, with prices from £1,905 to £3,991, a £2,086 spread on the same certified stone. NZ Jewellers lists it at £3,991. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561164191
Dimensions10.32 × 5.52 × 3.26 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cavity, Needle, Natural
Top View
10.32 mm5.52 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561164191
Side View
Table 60.0%CrownGirdle: MED-XTKPavilionCulet: NoneDepth 59.1%

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: £3,991 GBP|Low: £1,902 GBP|High: £4,109 GBP|Avg: £2,509 GBP|-2.9%
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
Retailer 20
November 6, 2026
Retailer 20£1,905 GBP
Retailer 2£1,915 GBP
Retailer 11£1,969 GBP
Retailer 16£2,100 GBP
Retailer 12£2,103 GBP
Retailer 13£2,108 GBP
Retailer 5£2,114 GBP
Retailer 14£2,282 GBP
Retailer 4£2,291 GBP
Retailer 8£2,306 GBP
Retailer 15£2,340 GBP
Retailer 7£2,359 GBP
Retailer 18£2,368 GBP
Retailer 6£2,379 GBP
Retailer 17£2,394 GBP
Retailer 10£2,565 GBP
Retailer 9£2,570 GBP
Retailer 3£2,681 GBP
Retailer 19£3,821 GBP
NZ Jewellers£3,991 GBP

22 data points across 20 retailers

20 retailers£1,905 GBP to £3,991 GBP

A
Cheapest Retailer
-
£1,905 GBP
B+
Retailer 2
-
£1,915 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,969 GBP
View
B+
Retailer 4
-
£2,100 GBP
View
B+
Retailer 5
-
£2,103 GBP
View
B+
Retailer 6
-
£2,108 GBP
View
B+
Retailer 7
-
£2,114 GBP
View
B+
Retailer 8
-
£2,282 GBP
View
B+
Retailer 9
-
£2,291 GBP
View
B+
Retailer 10
-
£2,306 GBP
View
B
Retailer 11
-
£2,340 GBP
View
Retailer 12
-
£2,359 GBP
View
Price last confirmed 14 days ago
B+
Retailer 13
-
£2,368 GBP
View
B
Retailer 14
-
£2,379 GBP
View
B+
Retailer 15
-
£2,394 GBP
View
B
Retailer 16
-
£2,565 GBP
View
B+
Retailer 17
-
£2,570 GBP
View
B
Retailer 18
-
£2,681 GBP
View
B
Retailer 19
-
£3,821 GBP
View
Most Expensive
B
NZ Jewellers
1748ead7-2722-44e0-8edc-2d166cdda5a8 · Nov 3
£3,991 GBP
$5,342 USD
View
19 more retailers have this diamond
Prices start from £1,905 GBPSave up to £2,086 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
£1,905 GBP