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Marquise|Natural|GIA

0.71ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6561736537

Certificate GIA 6561736537

Diamond specifications and retailer prices

From $1,690 AUD
$1,184 USD
As of October 31, 2026
Save $1,340 AUD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,029 AUD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 0.71ct natural marquise diamond

This 0.71ct natural marquise sits in the half to three-quarter 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 6561736537. Listed at 12 retailers as of October 31, 2026, with prices from $1,690 to $3,029, a $1,340 spread on the same certified stone. Helzberg Diamonds lists it at $3,029. 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

0.71
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.61°
Pavilion angle40.24°
OriginNatural
Grading LabGIA
CertificateGIA 6561736537
Dimensions8.72 × 4.60 × 2.95 mm
L/W Ratio1.90
Culet sizeNone
Top View
8.72 mm4.60 mm0.71 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561736537
Side View
Table 58.0%Crown 39.61°Girdle: STK-VTKPavilion 40.24°Culet: NoneDepth 64.1%

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: Oct 31
Current: $3,029 AUD|Low: $1,690 AUD|High: $3,029 AUD|Avg: $2,095 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
November 2, 2026
Retailer 7$1,690 AUD
Retailer 12$1,718 AUD
Retailer 11$1,727 AUD
Retailer 9$1,816 AUD
Retailer 4$1,839 AUD
Retailer 5$1,905 AUD
Retailer 8$2,069 AUD
Retailer 6$2,119 AUD
Retailer 3$2,404 AUD
Retailer 2$2,436 AUD
Retailer 10$2,576 AUD
Helzberg Diamonds$3,029 AUD

5 data points across 12 retailers

12 retailers$1,690 AUD to $3,029 AUD

B+
Cheapest Retailer
-
$1,690 AUD
$1,184 USD
B
Retailer 2
-
$1,718 AUD
$1,204 USD
View
B
Retailer 3
-
$1,727 AUD
$1,210 USD
View
B+
Retailer 4
-
$1,816 AUD
$1,273 USD
View
B+
Retailer 5
-
$1,839 AUD
SGD 1,742 SGD
View
B+
Retailer 6
-
$1,905 AUD
£1,051 GBP
View
B
Retailer 7
-
$2,069 AUD
$1,450 USD
View
B
Retailer 8
-
$2,119 AUD
$1,485 USD
View
B
Retailer 9
-
$2,404 AUD
$1,685 USD
View
B
Retailer 10
-
$2,436 AUD
€1,626 EUR
View
B
Retailer 11
-
$2,576 AUD
$1,805 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMLMHNJMLJN · Nov 1
$3,029 AUD
$2,123 USD
View
11 more retailers have this diamond
Prices start from $1,690 AUDSave up to $1,340 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+
0.71ct Marquise
$1,690 AUD