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Marquise|Natural|IGI

1.20ct K IF Marquise Natural Diamond

VG • K/IF • IGI 737518450

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 737518450

Diamond specifications and retailer prices

From $3,065 AUD
As of November 2, 2026
Save $4,090 AUD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,155 AUD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 737518450. Listed at 8 retailers as of November 2, 2026, with prices from $3,065 to $7,155, a $4,090 spread on the same certified stone. NZ Jewellers lists it at $7,155. 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

1.20
Carat
K
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle38.4°
OriginNatural
Grading LabIGI
CertificateIGI 737518450
Dimensions10.95 × 5.61 × 3.37 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Top View
10.95 mm5.61 mm1.20 ctK / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 737518450
Side View
Table 55.0%Crown 34.5°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 60.1%

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 2
Current: $7,155 AUD|Low: $3,064 AUD|High: $7,232 AUD|Avg: $4,296 AUD|-1.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4$3,065 AUD
Retailer 2$3,314 AUD
Retailer 8$3,423 AUD
Retailer 7$3,551 AUD
Retailer 3$3,558 AUD
Retailer 6$3,580 AUD
Retailer 5$6,002 AUD
NZ Jewellers$7,155 AUD

40 data points across 8 retailers

8 retailers$3,065 AUD to $7,155 AUD

A
Cheapest Retailer
-
$3,065 AUD
A
Retailer 2
-
$3,314 AUD
View
A
Retailer 3
-
$3,423 AUD
View
A
Retailer 4
-
$3,551 AUD
View
A
Retailer 5
-
$3,558 AUD
View
A
Retailer 6
-
$3,580 AUD
View
Retailer 7
-
$6,002 AUD
View
Price last confirmed 12 days ago
Most Expensive
B
NZ Jewellers
3d3e30f2-b65a-43bf-bbf1-f4acfef0cbe2 · Nov 3
$7,155 AUD
$4,916 USD
View
7 more retailers have this diamond
Prices start from $3,065 AUDSave up to $4,090 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
1.20ct Marquise
$3,065 AUD