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Marquise|Natural|GIA

1.20ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 6545918778

Certificate GIA 6545918778

Diamond specifications and retailer prices

From $6,476 NZD
As of November 5, 2026
Save $7,430 NZD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,906 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545918778. Listed at 21 retailers as of November 4, 2026, with prices from $6,476 to $13,906, a $7,430 spread on the same certified stone. MOH London lists it at $13,906. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545918778
Dimensions10.36 × 5.54 × 3.53 mm
L/W Ratio1.87
Top View
10.36 mm5.54 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545918778
Side View
Table 63.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 63.8%

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 5
Current: $13,906 NZD|Low: $6,476 NZD|High: $14,829 NZD|Avg: $8,866 NZD|-5.2%
MOH London
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 18$6,476 NZD
Retailer 7$6,840 NZD
Retailer 13$6,909 NZD
Retailer 5$6,977 NZD
Retailer 8$6,996 NZD
Retailer 15$7,239 NZD
Retailer 6$7,318 NZD
Retailer 12$7,371 NZD
Retailer 4$7,885 NZD
Retailer 19$8,062 NZD
Retailer 10$8,323 NZD
Retailer 17$8,569 NZD
Retailer 14$8,608 NZD
Retailer 9$8,929 NZD
Retailer 20$8,929 NZD
Retailer 3$9,218 NZD
Retailer 16$9,295 NZD
Retailer 2$9,452 NZD
Retailer 11$12,667 NZD
MOH London$13,906 NZD

23 data points across 20 retailers

21 retailers$6,476 NZD to $13,906 NZD

A
Cheapest Retailer
-
$6,476 NZD
B+
Retailer 2
-
$6,729 NZD
View
B+
Retailer 3
-
$6,840 NZD
View
B+
Retailer 4
-
$6,909 NZD
View
B+
Retailer 5
-
$6,977 NZD
View
B+
Retailer 6
-
$6,996 NZD
View
B+
Retailer 7
-
$7,237 NZD
View
B+
Retailer 8
-
$7,239 NZD
View
B+
Retailer 9
-
$7,318 NZD
View
Final sale: no returns
B+
Retailer 10
-
$7,885 NZD
View
B+
Retailer 11
-
$8,062 NZD
View
B
Retailer 12
-
$8,323 NZD
View
B+
Retailer 13
-
$8,569 NZD
View
B+
Retailer 14
-
$8,608 NZD
View
B+
Retailer 15
-
$8,929 NZD
View
B+
Retailer 16
-
$8,929 NZD
View
B
Retailer 17
-
$9,218 NZD
View
B+
Retailer 18
-
$9,295 NZD
View
Retailer 19
-
$9,452 NZD
View
B
Retailer 20
-
$12,667 NZD
View
Most Expensive
B
MOH London
DF1557164 · Nov 4
$13,906 NZD
£6,070 GBP
View
20 more retailers have this diamond
Prices start from $6,476 NZDSave up to $7,430 NZD

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
$6,476 NZD