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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 7562711418

Certificate GIA 7562711418

Diamond specifications and retailer prices

From $6,133 NZD
As of November 4, 2026
Save $4,856 NZD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,989 NZD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 7562711418. Listed at 15 retailers as of November 4, 2026, with prices from $6,133 to $10,989, a $4,856 spread on the same certified stone. Helzberg Diamonds lists it at $10,989. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.99°
Pavilion angle37.84°
OriginNatural
Grading LabGIA
CertificateGIA 7562711418
Dimensions10.46 × 5.58 × 3.33 mm
L/W Ratio1.87
Culet sizeNone
Top View
10.46 mm5.58 mm1.20 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7562711418
Side View
Table 59.0%Crown 37.99°Girdle: STK-VTKPavilion 37.84°Culet: NDepth 59.6%

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 4
Current: $10,989 NZD|Low: $6,133 NZD|High: $10,989 NZD|Avg: $7,761 NZD
Helzberg Diamonds
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$6,133 NZD
Retailer 7$6,164 NZD
Retailer 4$6,234 NZD
Retailer 10$6,283 NZD
Retailer 3$6,555 NZD
Retailer 12$6,647 NZD
Retailer 6$6,694 NZD
Retailer 9$7,039 NZD
Retailer 14$7,800 NZD
Retailer 8$7,885 NZD
Retailer 5$7,888 NZD
Retailer 2$8,509 NZD
Retailer 13$10,344 NZD
Retailer 15$10,910 NZD
Helzberg Diamonds$10,989 NZD

14 data points across 15 retailers

15 retailers$6,133 NZD to $10,989 NZD

B+
Cheapest Retailer
-
$6,133 NZD
B+
Retailer 2
-
$6,164 NZD
View
B
Retailer 3
-
$6,234 NZD
View
B+
Retailer 4
-
$6,283 NZD
View
B
Retailer 5
-
$6,555 NZD
View
B
Retailer 6
-
$6,647 NZD
View
B
Retailer 7
-
$6,694 NZD
View
B
Retailer 8
-
$7,039 NZD
View
B
Retailer 9
-
$7,800 NZD
View
B
Retailer 10
-
$7,885 NZD
View
B
Retailer 11
-
$7,888 NZD
View
B
Retailer 12
-
$8,509 NZD
View
C
Retailer 13
-
$10,344 NZD
View
C
Retailer 14
-
$10,910 NZD
View
Most Expensive
C
Helzberg Diamonds
XZRNLMINHHKHO · Nov 6
$10,989 NZD
$6,092 USD
View
14 more retailers have this diamond
Prices start from $6,133 NZDSave up to $4,856 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
$6,133 NZD