CaratHunter
Plans
Marquise|Natural|GIA

1.02ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1242036004

Certificate GIA 1242036004

Diamond specifications and retailer prices

From $4,806 NZD
As of October 31, 2026
Save $4,331 NZD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,137 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 1242036004. Listed at 14 retailers as of October 31, 2026, with prices from $4,806 to $9,137, a $4,331 spread on the same certified stone. Helzberg Diamonds lists it at $9,137. 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 angle38.06°
Pavilion angle40.17°
OriginNatural
Grading LabGIA
CertificateGIA 1242036004
Dimensions9.96 × 5.23 × 3.30 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.96 mm5.23 mm1.02 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242036004
Side View
Table 60.0%Crown 38.06°Girdle: MED-THKPavilion 40.17°Culet: NoneDepth 63.1%

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: $9,137 NZD|Low: $4,806 NZD|High: $9,321 NZD|Avg: $6,267 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
November 5, 2026
Retailer 10$4,806 NZD
Retailer 2$4,923 NZD
Retailer 6$4,928 NZD
Retailer 11$5,181 NZD
Retailer 12$5,195 NZD
Retailer 7$5,612 NZD
Retailer 4$5,789 NZD
Retailer 14$6,191 NZD
Retailer 3$6,355 NZD
Retailer 8$6,406 NZD
Retailer 9$6,667 NZD
Retailer 13$8,105 NZD
Retailer 5$8,590 NZD
Helzberg Diamonds$9,137 NZD

35 data points across 14 retailers

14 retailers$4,806 NZD to $9,137 NZD

A
Cheapest Retailer
-
$4,806 NZD
A
Retailer 2
-
$4,923 NZD
View
A
Retailer 3
-
$4,928 NZD
View
B+
Retailer 4
-
$5,181 NZD
View
B+
Retailer 5
-
$5,195 NZD
View
B+
Retailer 6
-
$5,612 NZD
View
B+
Retailer 7
-
$5,789 NZD
View
B+
Retailer 8
-
$6,191 NZD
View
B+
Retailer 9
-
$6,355 NZD
View
B+
Retailer 10
-
$6,406 NZD
View
B+
Retailer 11
-
$6,667 NZD
View
B
Retailer 12
-
$8,105 NZD
View
B
Retailer 13
-
$8,590 NZD
View
Most Expensive
B
Helzberg Diamonds
XZRHIKIGJMGGK · Nov 3
$9,137 NZD
$5,065 USD
View
13 more retailers have this diamond
Prices start from $4,806 NZDSave up to $4,331 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
$4,806 NZD