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Marquise|Natural|GIA

1.01ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6551026609

Certificate GIA 6551026609

Diamond specifications and retailer prices

From $4,388 AUD
As of November 5, 2026
Save $5,120 AUD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,508 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551026609. Listed at 19 retailers as of November 5, 2026, with prices from $4,388 to $9,508, a $5,120 spread on the same certified stone. NZ Jewellers lists it at $9,508. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.92°
OriginNatural
Grading LabGIA
CertificateGIA 6551026609
Dimensions10.13 × 5.37 × 3.26 mm
L/W Ratio1.89
Top View
10.13 mm5.37 mm1.01 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551026609
Side View
Table 60.0%Crown 34.92°Girdle: MED-THKPavilionCulet: NoneDepth 60.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,290 AUD|Low: $4,388 AUD|High: $9,237 AUD|Avg: $5,858 AUD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9$4,388 AUD
Retailer 10$4,764 AUD
Retailer 4$5,134 AUD
Retailer 12$5,274 AUD
Retailer 1$5,290 AUD
Retailer 6$5,527 AUD
Retailer 3$5,600 AUD
Retailer 2$5,785 AUD
Retailer 11$5,845 AUD
Retailer 7$6,001 AUD
Retailer 5$6,661 AUD
Retailer 8$9,127 AUD

38 data points across 12 retailers

19 retailers$4,388 AUD to $9,508 AUD

B+
Cheapest Retailer
-
$4,388 AUD
B+
Retailer 2
-
$4,764 AUD
View
B+
Retailer 3
-
$4,944 AUD
View
Retailer 4
-
$4,944 AUD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$5,134 AUD
View
B+
Retailer 6
-
$5,274 AUD
View
B+
Retailer 7
-
$5,290 AUD
View
B+
Retailer 8
-
$5,295 AUD
View
B+
Retailer 9
-
$5,527 AUD
View
B
Retailer 10
-
$5,600 AUD
View
B
Retailer 11
-
$5,600 AUD
View
B
Retailer 12
-
$5,705 AUD
View
B
Retailer 13
-
$5,785 AUD
View
Retailer 14
-
$5,845 AUD
View
Price last confirmed 28 days ago
B
Retailer 15
-
$6,001 AUD
View
Retailer 16
-
$6,178 AUD
View
Price last confirmed 13 days ago
B
Retailer 17
-
$6,661 AUD
View
B
Retailer 18
-
$9,127 AUD
View
Most Expensive
B
NZ Jewellers
e1f01791-b8dc-4b1a-9a3c-d67418633c41 · Nov 5
$9,508 AUD
$6,656 USD
View
18 more retailers have this diamond
Prices start from $4,388 AUDSave up to $5,120 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.

B+
1.01ct Marquise
$4,388 AUD