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Marquise|Natural|IGI

1.71ct F SI2 Marquise Natural Diamond

VG • F/SI2 • IGI 813641942

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 813641942

Diamond specifications and retailer prices

From $6,953 AUD
SGD 6,585 SGD
As of October 31, 2026
Save $2,890 AUD (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $14,333 AUD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 1.71ct natural marquise diamond

This 1.71ct natural marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 813641942. Listed at 6 retailers as of October 31, 2026, with a 42% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.71
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle42°
OriginNatural
Grading LabIGI
CertificateIGI 813641942
Dimensions11.80 × 6.07 × 3.96 mm
L/W Ratio1.94
Girdle conditionFaceted
Top View
11.80 mm6.07 mm1.71 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 813641942
Side View
Table 59.0%Crown 40.6°Girdle: MED-STKPavilion 42°Culet: NoneDepth 65.2%

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: Oct 31
Current: $9,843 AUD|Low: $6,953 AUD|High: $15,634 AUD|Avg: $10,029 AUD|-7.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Wholesale Diamonds Direct
November 2, 2026
Retailer 4$6,953 AUD
Retailer 3$8,198 AUD
Retailer 2$8,360 AUD
Retailer 5$9,749 AUD
Retailer 1$9,843 AUD
Wholesale Diamonds Direct$14,333 AUD

26 data points across 6 retailers

6 retailers$6,953 AUD to $9,843 AUD

A
Cheapest Retailer
-
$6,953 AUD
SGD 6,585 SGD
A
Retailer 2
-
$8,198 AUD
$5,745 USD
View
A
Retailer 3
-
$8,360 AUD
$5,859 USD
View
A
Retailer 4
-
$9,749 AUD
$6,832 USD
View
A
Retailer 5
-
$9,843 AUD
€6,570 EUR
View
Most Expensive
B+
Wholesale Diamonds Direct
612778872 · Oct 27
$14,333 AUD
$10,045 USD
View
Price last confirmed 7 days ago
5 more retailers have this diamond
Prices start from $6,953 AUDSave up to $2,890 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
1.71ct Marquise
$6,953 AUD