CaratHunter
Plans
Marquise|Natural|GIA

1.01ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 1567186401

Certificate GIA 1567186401

Diamond specifications and retailer prices

From $3,673 AUD
As of November 4, 2026
Save $3,316 AUD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,988 AUD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567186401. Listed at 14 retailers as of November 4, 2026, with prices from $3,673 to $6,988, a $3,316 spread on the same certified stone. Helzberg Diamonds lists it at $6,988. 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

1.01
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.84°
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 1567186401
Dimensions9.95 × 5.19 × 3.34 mm
L/W Ratio1.92
Culet sizeNone
Top View
9.95 mm5.19 mm1.01 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567186401
Side View
Table 57.0%Crown 39.84°Girdle: MED-THKPavilion 39.7°Culet: NoneDepth 64.4%

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 4
Current: $6,988 AUD|Low: $3,673 AUD|High: $7,260 AUD|Avg: $4,824 AUD|-3.7%
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 6, 2026
Retailer 11$3,673 AUD
Retailer 4$3,781 AUD
Retailer 8$3,840 AUD
Retailer 6$4,077 AUD
Retailer 5$4,143 AUD
Retailer 7$4,266 AUD
Retailer 3$4,424 AUD
Retailer 13$4,741 AUD
Retailer 10$4,771 AUD
Retailer 14$4,881 AUD
Retailer 2$4,884 AUD
Retailer 9$5,097 AUD
Retailer 12$6,605 AUD
Helzberg Diamonds$6,988 AUD

28 data points across 14 retailers

14 retailers$3,673 AUD to $6,988 AUD

A
Cheapest Retailer
-
$3,673 AUD
A
Retailer 2
-
$3,781 AUD
View
A
Retailer 3
-
$3,840 AUD
View
A
Retailer 4
-
$4,077 AUD
View
A
Retailer 5
-
$4,143 AUD
View
A
Retailer 6
-
$4,266 AUD
View
A
Retailer 7
-
$4,424 AUD
View
A
Retailer 8
-
$4,741 AUD
View
A
Retailer 9
-
$4,771 AUD
View
A
Retailer 10
-
$4,881 AUD
View
A
Retailer 11
-
$4,884 AUD
View
B+
Retailer 12
-
$5,097 AUD
View
B+
Retailer 13
-
$6,605 AUD
View
Most Expensive
B+
Helzberg Diamonds
XZRHLMNHOMKGH · Nov 6
$6,988 AUD
$4,892 USD
View
13 more retailers have this diamond
Prices start from $3,673 AUDSave up to $3,316 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
1.01ct Marquise
$3,673 AUD