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Marquise|Natural|GIA

3.50ct I SI1 Marquise Natural Diamond

I/SI1 • GIA 1455413348

Certificate GIA 1455413348

Diamond specifications and retailer prices

From $72,893 AUD
$51,085 USD
As of October 31, 2026
Save $11,344 AUD (13%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $84,237 AUD at Yorxs · As of November 2, 2026
View at Yorxs

About this 3.5ct natural marquise diamond

This 3.5ct natural marquise sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA 1455413348. Listed at 5 retailers as of October 31, 2026, with prices from $72,893 to $84,237, a $11,344 spread on the same certified stone. Yorxs lists it at $84,237. 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

3.50
Carat
I
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1455413348
Dimensions15.02 × 7.83 × 5.01 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Indented Natural, Natural
Top View
15.02 mm7.83 mm3.50 ctI / SI1
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1455413348
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $72,893 AUD|Low: $72,893 AUD|High: $84,351 AUD|Avg: $77,359 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 2, 2026
Retailer 1$72,893 AUD
Retailer 3$75,911 AUD
Retailer 4$75,911 AUD
Retailer 2$78,451 AUD
Yorxs$84,237 AUD

17 data points across 5 retailers

5 retailers$72,893 AUD to $84,237 AUD

B
Cheapest Retailer
-
$72,893 AUD
$51,085 USD
B
Retailer 2
-
$75,911 AUD
$53,200 USD
View
B
Retailer 3
-
$75,911 AUD
$53,200 USD
View
B
Retailer 4
-
$78,451 AUD
$54,980 USD
View
Most Expensive
B
Yorxs
530047665 · Nov 2
$84,237 AUD
€56,224 EUR
View
4 more retailers have this diamond
Prices start from $72,893 AUDSave up to $11,344 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
3.50ct Marquise
$72,893 AUD