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Marquise|Natural|GIA

1.00ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 2558810991

Certificate GIA 2558810991

Diamond specifications and retailer prices

From $3,378 AUD
$2,373 USD
As of October 31, 2026
Save $1,769 AUD (34%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,515 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2558810991. Listed at 20 retailers as of October 31, 2026, with a 52% 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558810991
Dimensions9.37 × 5.17 × 3.35 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Twinning Wisp, Needle, Indented Natural, Natural
Top View
9.37 mm5.17 mm1.00 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558810991
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 64.7%

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: Oct 31
Current: $4,843 AUD|Low: $3,134 AUD|High: $7,304 AUD|Avg: $4,654 AUD|-1.5%
Retailer 1
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
November 2, 2026
Retailer 2$3,134 AUD
Retailer 13$3,307 AUD
Retailer 12$3,378 AUD
Retailer 10$3,529 AUD
Retailer 11$3,609 AUD
Retailer 16$3,768 AUD
Retailer 4$3,869 AUD
Retailer 8$4,023 AUD
Retailer 7$4,314 AUD
Retailer 5$4,390 AUD
Retailer 3$4,395 AUD
Retailer 6$4,556 AUD
Retailer 1$4,843 AUD
Retailer 9$5,147 AUD
Retailer 14$7,047 AUD
Retailer 15$7,268 AUD

34 data points across 16 retailers

20 retailers$3,378 AUD to $5,147 AUD

Retailer 1
-
$3,134 AUD
HK$17,200 HKD
Price last confirmed 12 days ago
Retailer 2
-
$3,307 AUD
₹221,234 INR
View
Price last confirmed 13 days ago
A
Retailer 3
-
$3,378 AUD
$2,373 USD
View
A
Retailer 4
-
$3,529 AUD
$2,479 USD
View
A
Retailer 5
-
$3,609 AUD
$2,535 USD
View
A
Retailer 6
-
$3,694 AUD
View
A
Retailer 7
-
$3,768 AUD
SGD 3,577 SGD
View
A
Retailer 8
-
$4,023 AUD
$2,826 USD
View
Retailer 9
-
$4,314 AUD
$3,030 USD
View
Price last confirmed 34 days ago
Retailer 10
-
$4,314 AUD
$3,030 USD
View
Price last confirmed 25 days ago
Retailer 11
-
$4,390 AUD
SGD 4,167 SGD
View
Price last confirmed 14 days ago
Retailer 12
-
$4,395 AUD
$3,087 USD
View
Price last confirmed 15 days ago
Retailer 13
-
$4,480 AUD
$3,147 USD
View
Price last confirmed 32 days ago
Retailer 14
-
$4,556 AUD
$3,200 USD
View
Price last confirmed 14 days ago
B+
Retailer 15
-
$4,843 AUD
€3,240 EUR
View
Retailer 16
-
$4,977 AUD
$3,496 USD
View
Price last confirmed 34 days ago
B+
Retailer 17
-
$5,147 AUD
£2,847 GBP
View
Retailer 18
-
$7,047 AUD
£3,898 GBP
View
Price last confirmed 14 days ago
Retailer 19
-
$7,268 AUD
£4,020 GBP
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
d6dcdebc-04cf-4ccf-a5e1-225d36ef679d · Sep 28
$7,515 AUD
$5,279 USD
View
Price last confirmed 35 days ago
19 more retailers have this diamond
Prices start from $3,378 AUDSave up to $1,769 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
$3,378 AUD