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Marquise|Natural|GIA

1.01ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 5242098943

Certificate GIA 5242098943

Diamond specifications and retailer prices

From $3,510 AUD
As of November 5, 2026
Save $3,008 AUD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,518 AUD at Helzberg Diamonds · As of November 4, 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 H 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 5242098943. Listed at 15 retailers as of November 4, 2026, with prices from $3,510 to $6,518, a $3,008 spread on the same certified stone. Helzberg Diamonds lists it at $6,518. 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

1.01
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.28°
Pavilion angle40.33°
OriginNatural
Grading LabGIA
CertificateGIA 5242098943
Dimensions9.53 × 5.13 × 3.31 mm
L/W Ratio1.86
Culet sizeNone
Top View
9.53 mm5.13 mm1.01 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242098943
Side View
Table 61.0%Crown 40.28°Girdle: STK-VTKPavilion 40.33°Culet: NDepth 64.5%

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 5
Current: $6,518 AUD|Low: $3,504 AUD|High: $6,518 AUD|Avg: $4,556 AUD
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 2$3,510 AUD
Retailer 6$3,727 AUD
Retailer 13$3,764 AUD
Retailer 14$3,791 AUD
Retailer 12$3,800 AUD
Retailer 7$3,858 AUD
Retailer 9$4,053 AUD
Retailer 5$4,127 AUD
Retailer 3$4,440 AUD
Retailer 10$4,568 AUD
Retailer 4$4,597 AUD
Retailer 8$4,754 AUD
Retailer 15$5,780 AUD
Retailer 11$6,170 AUD
Helzberg Diamonds$6,518 AUD

20 data points across 15 retailers

15 retailers$3,510 AUD to $6,518 AUD

A
Cheapest Retailer
-
$3,510 AUD
B+
Retailer 2
-
$3,727 AUD
View
B+
Retailer 3
-
$3,764 AUD
View
B+
Retailer 4
-
$3,791 AUD
View
Retailer 5
-
$3,800 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$3,858 AUD
View
B+
Retailer 7
-
$4,053 AUD
View
B+
Retailer 8
-
$4,127 AUD
View
B+
Retailer 9
-
$4,440 AUD
View
B+
Retailer 10
-
$4,568 AUD
View
B
Retailer 11
-
$4,597 AUD
View
B+
Retailer 12
-
$4,754 AUD
View
B
Retailer 13
-
$5,780 AUD
View
B
Retailer 14
-
$6,170 AUD
View
Most Expensive
B
Helzberg Diamonds
XZRLIKIGPOPKJ · Nov 4
$6,518 AUD
$4,563 USD
View
14 more retailers have this diamond
Prices start from $3,510 AUDSave up to $3,008 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
$3,510 AUD