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Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 3555909668

Certificate GIA 3555909668

Diamond specifications and retailer prices

From $4,859 NZD
As of October 31, 2026
Save $4,383 NZD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,242 NZD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded G 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 3555909668. Listed at 15 retailers as of October 31, 2026, with prices from $4,859 to $9,242, a $4,383 spread on the same certified stone. Helzberg Diamonds lists it at $9,242. 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

1.00
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.66°
Pavilion angle38.05°
OriginNatural
Grading LabGIA
CertificateGIA 3555909668
Dimensions9.65 × 5.19 × 3.17 mm
L/W Ratio1.86
Culet sizeNone
Top View
9.65 mm5.19 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555909668
Side View
Table 59.0%Crown 40.66°Girdle: STK-VTKPavilion 38.05°Culet: NoneDepth 61.1%

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: Oct 31
Current: $9,242 NZD|Low: $4,859 NZD|High: $9,528 NZD|Avg: $6,373 NZD|-3.0%
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 4, 2026
Retailer 11$4,859 NZD
Retailer 10$4,970 NZD
Retailer 7$5,170 NZD
Retailer 12$5,240 NZD
Retailer 13$5,256 NZD
Retailer 2$5,674 NZD
Retailer 5$5,855 NZD
Retailer 3$6,253 NZD
Retailer 14$6,259 NZD
Retailer 4$6,406 NZD
Retailer 8$6,479 NZD
Retailer 9$6,742 NZD
Retailer 15$8,197 NZD
Retailer 6$8,726 NZD
Helzberg Diamonds$9,242 NZD

35 data points across 15 retailers

15 retailers$4,859 NZD to $9,242 NZD

A
Cheapest Retailer
-
$4,859 NZD
A
Retailer 2
-
$4,970 NZD
View
B+
Retailer 3
-
$5,170 NZD
View
B+
Retailer 4
-
$5,240 NZD
View
A
Retailer 5
-
$5,256 NZD
View
B+
Retailer 6
-
$5,674 NZD
View
B+
Retailer 7
-
$5,855 NZD
View
B+
Retailer 8
-
$6,253 NZD
View
B+
Retailer 9
-
$6,259 NZD
View
B+
Retailer 10
-
$6,406 NZD
View
B+
Retailer 11
-
$6,479 NZD
View
B+
Retailer 12
-
$6,742 NZD
View
B
Retailer 13
-
$8,197 NZD
View
B
Retailer 14
-
$8,726 NZD
View
Most Expensive
B
Helzberg Diamonds
XZRJLLLPGPMMO · Nov 4
$9,242 NZD
$5,198 USD
View
14 more retailers have this diamond
Prices start from $4,859 NZDSave up to $4,383 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
1.00ct Marquise
$4,859 NZD