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Marquise|Natural|GIA

1.02ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 7558906414

Certificate GIA 7558906414

Diamond specifications and retailer prices

From $4,551 NZD
As of November 3, 2026
Save $3,875 NZD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,426 NZD at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded I 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 7558906414. Listed at 15 retailers as of November 3, 2026, with prices from $4,551 to $8,426, a $3,875 spread on the same certified stone. Helzberg Diamonds lists it at $8,426. 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

1.02
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.77°
Pavilion angle38.19°
OriginNatural
Grading LabGIA
CertificateGIA 7558906414
Dimensions9.86 × 5.17 × 3.20 mm
L/W Ratio1.91
Culet sizeNone
Top View
9.86 mm5.17 mm1.02 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558906414
Side View
Table 59.0%Crown 39.77°Girdle: STK-THKPavilion 38.19°Culet: NDepth 61.9%

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: Nov 3
Current: $8,426 NZD|Low: $4,551 NZD|High: $8,596 NZD|Avg: $5,878 NZD|-2.0%
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 5, 2026
Retailer 5$4,551 NZD
Retailer 2$4,631 NZD
Retailer 12$4,865 NZD
Retailer 6$4,917 NZD
Retailer 7$5,002 NZD
Retailer 9$5,239 NZD
Retailer 4$5,334 NZD
Retailer 15$5,735 NZD
Retailer 8$5,791 NZD
Retailer 11$5,906 NZD
Retailer 3$5,924 NZD
Retailer 14$6,148 NZD
Retailer 10$7,474 NZD
Retailer 13$7,943 NZD
Helzberg Diamonds$8,426 NZD

37 data points across 15 retailers

15 retailers$4,551 NZD to $8,426 NZD

A
Cheapest Retailer
-
$4,551 NZD
A
Retailer 2
-
$4,631 NZD
View
B+
Retailer 3
-
$4,865 NZD
View
B+
Retailer 4
-
$4,917 NZD
View
B+
Retailer 5
-
$5,002 NZD
View
B+
Retailer 6
-
$5,239 NZD
View
B+
Retailer 7
-
$5,334 NZD
View
B+
Retailer 8
-
$5,735 NZD
View
B+
Retailer 9
-
$5,791 NZD
View
B+
Retailer 10
-
$5,906 NZD
View
B+
Retailer 11
-
$5,924 NZD
View
B+
Retailer 12
-
$6,148 NZD
View
B
Retailer 13
-
$7,474 NZD
View
B
Retailer 14
-
$7,943 NZD
View
Most Expensive
B
Helzberg Diamonds
XZRNLLOPGMKHK · Nov 3
$8,426 NZD
$4,671 USD
View
14 more retailers have this diamond
Prices start from $4,551 NZDSave up to $3,875 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
1.02ct Marquise
$4,551 NZD