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Marquise|Natural|IGI

1.00ct K SI2 Marquise Natural Diamond

VG • K/SI2 • IGI 778617524

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 778617524

Diamond specifications and retailer prices

From $1,267 AUD
As of November 6, 2026
Save $2,890 AUD (70%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,157 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 778617524. Listed at 13 retailers as of November 5, 2026, with prices from $1,267 to $4,157, a $2,890 spread on the same certified stone. NZ Jewellers lists it at $4,157. 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

1.00
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle38°
OriginNatural
Grading LabIGI
CertificateIGI 778617524
Dimensions10.13 × 5.34 × 3.21 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Top View
10.13 mm5.34 mm1.00 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 778617524
Side View
Table 58.0%Crown 34.1°Girdle: MED-THKPavilion 38°Culet: NoneDepth 60.1%

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: Nov 6
Current: $1,267 AUD|Low: $1,267 AUD|High: $3,160 AUD|Avg: $1,926 AUD|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 1$1,267 AUD
Retailer 9$1,633 AUD
Retailer 11$1,704 AUD
Retailer 8$1,770 AUD
Retailer 2$1,773 AUD
Retailer 12$1,843 AUD
Retailer 10$1,873 AUD
Retailer 3$1,896 AUD
Retailer 7$1,928 AUD
Retailer 4$1,967 AUD
Retailer 5$2,198 AUD
Retailer 6$3,113 AUD

46 data points across 12 retailers

13 retailers$1,267 AUD to $4,157 AUD

A
Cheapest Retailer
-
$1,267 AUD
B+
Retailer 2
-
$1,633 AUD
View
Retailer 3
-
$1,704 AUD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$1,704 AUD
View
B+
Retailer 5
-
$1,770 AUD
View
B+
Retailer 6
-
$1,773 AUD
View
B+
Retailer 7
-
$1,873 AUD
View
B+
Retailer 8
-
$1,896 AUD
View
B+
Retailer 9
-
$1,928 AUD
View
B+
Retailer 10
-
$1,967 AUD
View
B+
Retailer 11
-
$2,198 AUD
View
B+
Retailer 12
-
$3,113 AUD
View
Most Expensive
B
NZ Jewellers
bfb7851c-c2b8-445b-a8fc-a74bbb8d6760 · Nov 5
$4,157 AUD
$2,910 USD
View
12 more retailers have this diamond
Prices start from $1,267 AUDSave up to $2,890 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
1.00ct Marquise
$1,267 AUD