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Marquise|Natural|GIA

0.73ct D SI1 Marquise Natural Diamond

GD • D/SI1 • GIA 2566179313

Certificate GIA 2566179313

Diamond specifications and retailer prices

From $1,998 AUD
$1,400 USD
As of November 1, 2026
Save $542 AUD (21%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,540 AUD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 0.73ct natural marquise diamond

This 0.73ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566179313. Listed at 6 retailers as of October 29, 2026, with prices from $1,998 to $2,540, a $542 spread on the same certified stone. Blue Nile lists it at $2,540. 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

0.73
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566179313
Dimensions9.21 × 4.61 × 2.92 mm
L/W Ratio2.00
Culet sizeNone
Key to symbols
Crystal
Top View
9.21 mm4.61 mm0.73 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2566179313
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.5%

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 1
Current: $2,540 AUD|Low: $1,745 AUD|High: $2,540 AUD|Avg: $2,190 AUD|+0.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 3$1,998 AUD
Retailer 4$2,106 AUD
Retailer 6$2,136 AUD
Retailer 2$2,326 AUD
Retailer 5$2,364 AUD
Blue Nile$2,540 AUD

36 data points across 6 retailers

6 retailers$1,998 AUD to $2,540 AUD

B+
Cheapest Retailer
-
$1,998 AUD
$1,400 USD
B
Retailer 2
-
$2,106 AUD
$1,476 USD
View
Final sale: no returns
B
Retailer 3
-
$2,136 AUD
$1,497 USD
View
B
Retailer 4
-
$2,326 AUD
£1,284 GBP
View
B
Retailer 5
-
$2,364 AUD
SGD 2,239 SGD
View
Most Expensive
B
Blue Nile
30120731 · Oct 29
$2,540 AUD
$1,780 USD
View
5 more retailers have this diamond
Prices start from $1,998 AUDSave up to $542 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+
0.73ct Marquise
$1,998 AUD