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Marquise|Natural|IGI

1.22ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 790682820

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 790682820

Diamond specifications and retailer prices

From $3,614 AUD
As of November 4, 2026
Save $4,822 AUD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,435 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.22ct natural marquise diamond

This 1.22ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 790682820. Listed at 15 retailers as of November 4, 2026, with prices from $3,614 to $8,435, a $4,822 spread on the same certified stone. NZ Jewellers lists it at $8,435. 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

1.22
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle36.9°
OriginNatural
Grading LabIGI
CertificateIGI 790682820
Dimensions10.51 × 5.58 × 3.46 mm
L/W Ratio1.88
Girdle conditionFaceted
Top View
10.51 mm5.58 mm1.22 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 790682820
Side View
Table 55.0%Crown 36.3°Girdle: THK-VTKPavilion 36.9°Culet: NoneDepth 62.0%

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 4
Current: $4,321 AUD|Low: $3,739 AUD|High: $7,155 AUD|Avg: $4,650 AUD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$3,739 AUD
Retailer 5$3,852 AUD
Retailer 7$3,966 AUD
Retailer 1$4,321 AUD
Retailer 4$4,704 AUD
Retailer 2$4,925 AUD
Retailer 3$7,051 AUD

44 data points across 7 retailers

15 retailers$3,614 AUD to $8,435 AUD

B+
Cheapest Retailer
-
$3,614 AUD
B+
Retailer 2
-
$3,739 AUD
View
B+
Retailer 3
-
$3,852 AUD
View
B+
Retailer 4
-
$3,966 AUD
View
B+
Retailer 5
-
$4,036 AUD
View
Retailer 6
-
$4,036 AUD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$4,190 AUD
View
B
Retailer 8
-
$4,241 AUD
View
B+
Retailer 9
-
$4,321 AUD
View
Retailer 10
-
$4,656 AUD
View
Price last confirmed 57 days ago
B
Retailer 11
-
$4,656 AUD
View
B
Retailer 12
-
$4,704 AUD
View
B
Retailer 13
-
$4,925 AUD
View
B
Retailer 14
-
$7,051 AUD
View
Most Expensive
C
NZ Jewellers
a56808f0-f9c6-45af-a76b-9f1ec858b78b · Nov 5
$8,435 AUD
$5,796 USD
View
14 more retailers have this diamond
Prices start from $3,614 AUDSave up to $4,822 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+
1.22ct Marquise
$3,614 AUD