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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6555703280

Certificate GIA 6555703280

Diamond specifications and retailer prices

From $5,625 NZD
As of November 6, 2026
Save $7,524 NZD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $13,149 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555703280. Listed at 23 retailers as of November 5, 2026, with prices from $5,625 to $13,149, a $7,524 spread on the same certified stone. NZ Jewellers lists it at $13,149. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555703280
Dimensions10.70 × 5.36 × 3.42 mm
L/W Ratio2.00
Top View
10.70 mm5.36 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555703280
Side View
Table 58.0%CrownGirdle: STK-XTKPavilionCulet: NoneDepth 63.9%

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: $13,149 NZD|Low: $5,625 NZD|High: $13,149 NZD|Avg: $8,112 NZD
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
Retailer 21
November 6, 2026
Retailer 2$5,625 NZD
Retailer 9$6,444 NZD
Retailer 7$6,642 NZD
Retailer 12$6,692 NZD
Retailer 3$6,756 NZD
Retailer 6$6,967 NZD
Retailer 8$7,180 NZD
Retailer 13$7,320 NZD
Retailer 19$7,548 NZD
Retailer 20$7,548 NZD
Retailer 21$7,548 NZD
Retailer 15$7,598 NZD
Retailer 11$7,813 NZD
Retailer 14$8,008 NZD
Retailer 10$8,090 NZD
Retailer 18$8,505 NZD
Retailer 4$8,707 NZD
Retailer 16$9,211 NZD
Retailer 5$10,910 NZD
Retailer 17$12,588 NZD
NZ Jewellers$13,149 NZD

24 data points across 21 retailers

23 retailers$5,625 NZD to $13,149 NZD

B+
Cheapest Retailer
-
$5,625 NZD
B
Retailer 2
-
$6,444 NZD
View
B
Retailer 3
-
$6,642 NZD
View
B
Retailer 4
-
$6,692 NZD
View
B
Retailer 5
-
$6,756 NZD
View
B
Retailer 6
-
$6,911 NZD
View
B
Retailer 7
-
$6,967 NZD
View
Final sale: no returns
B
Retailer 8
-
$7,180 NZD
View
B
Retailer 9
-
$7,320 NZD
View
B
Retailer 10
-
$7,548 NZD
View
B
Retailer 11
-
$7,548 NZD
View
Retailer 12
-
$7,548 NZD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$7,598 NZD
View
B
Retailer 14
-
$7,813 NZD
View
B
Retailer 15
-
$8,008 NZD
View
Retailer 16
-
$8,090 NZD
View
Price last confirmed 34 days ago
B
Retailer 17
-
$8,184 NZD
View
B
Retailer 18
-
$8,505 NZD
View
B
Retailer 19
-
$8,707 NZD
View
B
Retailer 20
-
$9,211 NZD
View
Retailer 21
-
$10,910 NZD
View
Price last confirmed 11 days ago
B
Retailer 22
-
$12,588 NZD
View
Most Expensive
B
NZ Jewellers
ac532a44-bd7d-45e3-ad64-4a41ba6839dc · Nov 5
$13,149 NZD
$7,289 USD
View
22 more retailers have this diamond
Prices start from $5,625 NZDSave up to $7,524 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
$5,625 NZD