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Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 7556752755

Certificate GIA 7556752755

Diamond specifications and retailer prices

From $7,147 NZD
As of November 5, 2026
Save $5,567 NZD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,714 NZD at Helzberg Diamonds · As of November 4, 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 H 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 7556752755. Listed at 15 retailers as of November 4, 2026, with prices from $7,147 to $12,714, a $5,567 spread on the same certified stone. Helzberg Diamonds lists it at $12,714. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.35°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 7556752755
Dimensions10.12 × 5.47 × 3.60 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.12 mm5.47 mm1.20 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556752755
Side View
Table 59.0%Crown 40.35°Girdle: VTN-VTKPavilion 40.4°Culet: NoneDepth 65.7%

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 5
Current: $12,714 NZD|Low: $7,147 NZD|High: $13,508 NZD|Avg: $9,318 NZD|-5.9%
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
November 7, 2026
Retailer 12$7,147 NZD
Retailer 5$7,264 NZD
Retailer 9$7,345 NZD
Retailer 7$7,416 NZD
Retailer 6$7,670 NZD
Retailer 4$7,742 NZD
Retailer 2$7,995 NZD
Retailer 14$8,956 NZD
Retailer 3$8,996 NZD
Retailer 11$9,144 NZD
Retailer 8$9,842 NZD
Retailer 10$11,965 NZD
Retailer 13$12,644 NZD
Helzberg Diamonds$12,714 NZD

29 data points across 14 retailers

15 retailers$7,147 NZD to $12,714 NZD

B+
Cheapest Retailer
-
$7,147 NZD
B+
Retailer 2
-
$7,264 NZD
View
B+
Retailer 3
-
$7,345 NZD
View
B+
Retailer 4
-
$7,416 NZD
View
B
Retailer 5
-
$7,670 NZD
View
B+
Retailer 6
-
$7,742 NZD
View
B+
Retailer 7
-
$7,995 NZD
View
B
Retailer 8
-
$8,956 NZD
View
B
Retailer 9
-
$8,996 NZD
View
B
Retailer 10
-
$9,144 NZD
View
B
Retailer 11
-
$9,586 NZD
View
B
Retailer 12
-
$9,842 NZD
View
B
Retailer 13
-
$11,965 NZD
View
B
Retailer 14
-
$12,644 NZD
View
Most Expensive
B
Helzberg Diamonds
XZRNLLMNLINLL · Nov 4
$12,714 NZD
$7,048 USD
View
14 more retailers have this diamond
Prices start from $7,147 NZDSave up to $5,567 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
$7,147 NZD