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Marquise|Natural|IGI

1.21ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 819641821

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 819641821

Diamond specifications and retailer prices

From $2,877 AUD
As of November 6, 2026
Save $1,888 AUD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,766 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 819641821. Listed at 6 retailers as of November 6, 2026, with prices from $2,877 to $4,766, a $1,888 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,766. 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

1.21
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 819641821
Dimensions10.21 × 5.51 × 3.52 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.21 mm5.51 mm1.21 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 819641821
Side View
Table 59.0%Crown 39.3°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,877 AUD|Low: $2,867 AUD|High: $5,351 AUD|Avg: $3,741 AUD|-11.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Wholesale Diamonds Direct
November 6, 2026
Retailer 1$2,877 AUD
Retailer 3$2,883 AUD
Retailer 5$2,976 AUD
Retailer 4$3,681 AUD
Retailer 2$4,069 AUD
Wholesale Diamonds Direct$4,766 AUD

30 data points across 6 retailers

6 retailers$2,877 AUD to $4,766 AUD

A
Cheapest Retailer
-
$2,877 AUD
A
Retailer 2
-
$2,883 AUD
View
A
Retailer 3
-
$2,976 AUD
View
A
Retailer 4
-
$3,681 AUD
View
B+
Retailer 5
-
$4,069 AUD
View
Most Expensive
B+
Wholesale Diamonds Direct
413305093 · Nov 6
$4,766 AUD
$3,274 USD
View
5 more retailers have this diamond
Prices start from $2,877 AUDSave up to $1,888 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
1.21ct Marquise
$2,877 AUD