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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 2564327633

Certificate GIA 2564327633

Diamond specifications and retailer prices

From $8,312 NZD
As of November 6, 2026
Save $10,235 NZD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $18,548 NZD 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564327633. Listed at 15 retailers as of November 5, 2026, with prices from $8,312 to $18,548, a $10,235 spread on the same certified stone. NZ Jewellers lists it at $18,548. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564327633
Dimensions10.62 × 5.50 × 3.41 mm
L/W Ratio1.93
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Twinning Wisp, Cavity, Needle, Indented Natural
Top View
10.62 mm5.50 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564327633
Side View
Table 60.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 62.0%

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: $18,548 NZD|Low: $8,242 NZD|High: $19,067 NZD|Avg: $11,441 NZD|-2.7%
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
November 6, 2026
Retailer 11$8,312 NZD
Retailer 2$8,350 NZD
Retailer 6$9,398 NZD
Retailer 3$9,481 NZD
Retailer 5$9,889 NZD
Retailer 4$10,237 NZD
Retailer 8$10,758 NZD
Retailer 12$11,090 NZD
Retailer 13$11,090 NZD
Retailer 7$11,269 NZD
Retailer 15$11,543 NZD
Retailer 14$12,795 NZD
Retailer 10$12,799 NZD
Retailer 9$16,295 NZD
NZ Jewellers$18,548 NZD

27 data points across 15 retailers

15 retailers$8,312 NZD to $18,548 NZD

B+
Cheapest Retailer
-
$8,312 NZD
B+
Retailer 2
-
$8,350 NZD
View
Retailer 3
-
$9,398 NZD
View
Price last confirmed 10 days ago
Retailer 4
-
$9,481 NZD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$9,889 NZD
View
B
Retailer 6
-
$10,237 NZD
View
Final sale: no returns
B
Retailer 7
-
$10,758 NZD
View
B
Retailer 8
-
$11,090 NZD
View
B
Retailer 9
-
$11,090 NZD
View
Retailer 10
-
$11,269 NZD
View
Price last confirmed 28 days ago
B
Retailer 11
-
$11,543 NZD
View
B
Retailer 12
-
$12,795 NZD
View
B
Retailer 13
-
$12,799 NZD
View
B
Retailer 14
-
$16,295 NZD
View
Most Expensive
B
NZ Jewellers
16ee0a86-0425-4dd0-b086-87179b70aa03 · Nov 5
$18,548 NZD
$10,282 USD
View
14 more retailers have this diamond
Prices start from $8,312 NZDSave up to $10,235 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.

B+
1.20ct Marquise
$8,312 NZD