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Marquise|Natural|IGI

2.50ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 799675095

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 799675095

Diamond specifications and retailer prices

From $10,432 AUD
SGD 9,903 SGD
As of October 31, 2026
Save $6,299 AUD (38%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $16,732 AUD at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 799675095. Listed at 7 retailers as of October 31, 2026, with prices from $10,432 to $16,732, a $6,299 spread on the same certified stone. The Diamond Guys lists it at $16,732. 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

2.50
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle38.5°
OriginNatural
Grading LabIGI
CertificateIGI 799675095
Dimensions12.93 × 6.99 × 4.45 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
12.93 mm6.99 mm2.50 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 799675095
Side View
Table 57.0%Crown 40.2°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 63.7%

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: $14,783 AUD|Low: $10,432 AUD|High: $19,590 AUD|Avg: $14,614 AUD|-12.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
October 31, 2026
Retailer 3$10,432 AUD
Retailer 7$10,586 AUD
Retailer 2$12,214 AUD
Retailer 4$12,432 AUD
Retailer 5$14,307 AUD
Retailer 1$14,783 AUD
Retailer 6$15,093 AUD
The Diamond Guys$16,732 AUD
Retailer 8$19,590 AUD

28 data points across 9 retailers

7 retailers$10,432 AUD to $16,732 AUD

A
Cheapest Retailer
-
$10,432 AUD
SGD 9,903 SGD
A
Retailer 2
-
$12,214 AUD
$8,580 USD
View
A
Retailer 3
-
$12,432 AUD
$8,733 USD
View
A
Retailer 4
-
$14,307 AUD
$10,050 USD
View
A
Retailer 5
-
$14,783 AUD
€9,890 EUR
View
A
Retailer 6
-
$15,093 AUD
$10,602 USD
View
Most Expensive
B+
The Diamond Guys
1959627130 · Oct 31
$16,732 AUD
$11,753 USD
View
6 more retailers have this diamond
Prices start from $10,432 AUDSave up to $6,299 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
2.50ct Marquise
$10,432 AUD