CaratHunter
Plans
Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 1559993905

Certificate GIA 1559993905

Diamond specifications and retailer prices

From $1,879 AUD
As of November 6, 2026
Save $4,279 AUD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,158 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559993905. Listed at 15 retailers as of November 5, 2026, with prices from $1,879 to $6,158, a $4,279 spread on the same certified stone. NZ Jewellers lists it at $6,158. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559993905
Dimensions9.64 × 5.09 × 3.33 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
9.64 mm5.09 mm1.00 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559993905
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.5%

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: $4,398 AUD|Low: $1,879 AUD|High: $4,475 AUD|Avg: $2,949 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4$1,879 AUD
Retailer 3$2,316 AUD
Retailer 2$2,802 AUD
Retailer 6$3,081 AUD
Retailer 5$3,199 AUD
Retailer 1$4,398 AUD

35 data points across 6 retailers

15 retailers$1,879 AUD to $6,158 AUD

A
Cheapest Retailer
-
$1,879 AUD
B+
Retailer 2
-
$2,301 AUD
View
A
Retailer 3
-
$2,316 AUD
View
B+
Retailer 4
-
$2,525 AUD
View
Retailer 5
-
$2,525 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$2,620 AUD
View
B+
Retailer 7
-
$2,642 AUD
View
B+
Retailer 8
-
$2,723 AUD
View
Retailer 9
-
$2,736 AUD
View
Price last confirmed 39 days ago
B+
Retailer 10
-
$2,802 AUD
View
B+
Retailer 11
-
$2,912 AUD
View
B+
Retailer 12
-
$3,081 AUD
View
B+
Retailer 13
-
$3,199 AUD
View
B
Retailer 14
-
$4,398 AUD
View
Most Expensive
C
NZ Jewellers
73aed409-1bee-4c0d-bbc6-5dcd82ceaa92 · Nov 5
$6,158 AUD
$4,231 USD
View
14 more retailers have this diamond
Prices start from $1,879 AUDSave up to $4,279 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
$1,879 AUD