CaratHunter
Plans
Marquise|Natural|GIA

1.00ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 7558350140

Certificate GIA 7558350140

Diamond specifications and retailer prices

From $2,556 AUD
As of November 6, 2026
Save $3,759 AUD (60%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $7,556 AUD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct 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 stated by the retailer rather than the lab and certified by GIA 7558350140. Listed at 25 retailers as of November 4, 2026, with a 147% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.79°
Pavilion angle39.73°
OriginNatural
Grading LabGIA
CertificateGIA 7558350140
Dimensions9.44 × 5.10 × 3.34 mm
L/W Ratio1.85
Culet sizeNone
Top View
9.44 mm5.10 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7558350140
Side View
Table 60.0%Crown 40.79°Girdle: STK-VTKPavilion 39.73°Culet: NoneDepth 65.6%

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: $7,556 AUD|Low: $2,364 AUD|High: $7,556 AUD|Avg: $3,784 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Retailer 29
November 6, 2026
Retailer 10$2,556 AUD
Retailer 25$2,767 AUD
Retailer 3$2,835 AUD
Retailer 28$2,853 AUD
Retailer 7$2,879 AUD
Retailer 12$2,944 AUD
Retailer 14$2,957 AUD
Retailer 29$3,021 AUD
Retailer 15$3,084 AUD
Retailer 5$3,275 AUD
Retailer 11$3,275 AUD
Retailer 19$3,350 AUD
Retailer 22$3,419 AUD
Retailer 4$3,422 AUD
Retailer 27$3,426 AUD
Retailer 2$3,554 AUD
Retailer 6$3,579 AUD
Retailer 8$3,668 AUD
Retailer 20$3,694 AUD
Retailer 16$3,778 AUD
Retailer 17$3,784 AUD
Retailer 18$3,784 AUD
Retailer 23$3,823 AUD
Retailer 21$3,900 AUD
Retailer 13$4,209 AUD
Retailer 26$5,199 AUD
Retailer 9$5,426 AUD
Retailer 24$6,315 AUD
NZ Jewellers$7,556 AUD

17 data points across 29 retailers

25 retailers$2,556 AUD to $6,315 AUD

A
Cheapest Retailer
-
$2,556 AUD
A
Retailer 2
-
$2,767 AUD
View
B+
Retailer 3
-
$2,835 AUD
View
B+
Retailer 4
-
$2,853 AUD
View
B+
Retailer 5
-
$2,879 AUD
View
B+
Retailer 6
-
$2,944 AUD
View
B+
Retailer 7
-
$2,957 AUD
View
B+
Retailer 8
-
$3,021 AUD
View
Final sale: no returns
B+
Retailer 9
-
$3,084 AUD
View
Retailer 10
-
$3,275 AUD
View
Price last confirmed 45 days ago
B+
Retailer 11
-
$3,350 AUD
View
Retailer 12
-
$3,419 AUD
View
Price last confirmed 32 days ago
B+
Retailer 13
-
$3,426 AUD
View
B+
Retailer 14
-
$3,554 AUD
View
B+
Retailer 15
-
$3,579 AUD
View
B+
Retailer 16
-
$3,668 AUD
View
Retailer 17
-
$3,778 AUD
View
Price last confirmed 45 days ago
B+
Retailer 18
-
$3,784 AUD
View
B+
Retailer 19
-
$3,784 AUD
View
B+
Retailer 20
-
$3,823 AUD
View
B+
Retailer 21
-
$3,900 AUD
View
B+
Retailer 22
-
$4,209 AUD
View
B
Retailer 23
-
$5,199 AUD
View
B
Retailer 24
-
$6,315 AUD
View
Most Expensive
NZ Jewellers
c80e9326-1258-4adf-8d75-8fba039cd4d0 · Oct 3
$7,556 AUD
$5,192 USD
View
Price last confirmed 34 days ago
24 more retailers have this diamond
Prices start from $2,556 AUDSave up to $3,759 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
$2,556 AUD