CaratHunter
Plans
Marquise|Natural|GIA

1.02ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 7558906414

Certificate GIA 7558906414

Diamond specifications and retailer prices

From $3,672 AUD
As of November 3, 2026
Save $3,126 AUD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,798 AUD 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 $3,672 to $6,798, a $3,126 spread on the same certified stone. Helzberg Diamonds lists it at $6,798. 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: $6,798 AUD|Low: $3,672 AUD|High: $6,935 AUD|Avg: $4,742 AUD|-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$3,672 AUD
Retailer 2$3,736 AUD
Retailer 12$3,925 AUD
Retailer 6$3,967 AUD
Retailer 7$4,036 AUD
Retailer 9$4,226 AUD
Retailer 4$4,304 AUD
Retailer 15$4,627 AUD
Retailer 8$4,672 AUD
Retailer 11$4,765 AUD
Retailer 3$4,780 AUD
Retailer 14$4,960 AUD
Retailer 10$6,030 AUD
Retailer 13$6,408 AUD
Helzberg Diamonds$6,798 AUD

37 data points across 15 retailers

15 retailers$3,672 AUD to $6,798 AUD

A
Cheapest Retailer
-
$3,672 AUD
A
Retailer 2
-
$3,736 AUD
View
B+
Retailer 3
-
$3,925 AUD
View
B+
Retailer 4
-
$3,967 AUD
View
B+
Retailer 5
-
$4,036 AUD
View
B+
Retailer 6
-
$4,226 AUD
View
B+
Retailer 7
-
$4,304 AUD
View
B+
Retailer 8
-
$4,627 AUD
View
B+
Retailer 9
-
$4,672 AUD
View
B+
Retailer 10
-
$4,765 AUD
View
B+
Retailer 11
-
$4,780 AUD
View
B+
Retailer 12
-
$4,960 AUD
View
B
Retailer 13
-
$6,030 AUD
View
B
Retailer 14
-
$6,408 AUD
View
Most Expensive
B
Helzberg Diamonds
XZRNLLOPGMKHK · Nov 3
$6,798 AUD
$4,671 USD
View
14 more retailers have this diamond
Prices start from $3,672 AUDSave up to $3,126 AUD

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
$3,672 AUD