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Marquise|Natural|GIA

1.00ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2566126580

Certificate GIA 2566126580

Diamond specifications and retailer prices

From $4,984 NZD
As of November 1, 2026
Save $6,081 NZD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $11,527 NZD at NZ Jewellers · As of October 17, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566126580. Listed at 21 retailers as of November 1, 2026, with a 122% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566126580
Dimensions9.69 × 5.23 × 3.22 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Knot, Crystal, Indented Natural, Natural
Top View
9.69 mm5.23 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2566126580
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 61.6%

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 1
Current: $11,527 NZD|Low: $4,938 NZD|High: $11,527 NZD|Avg: $7,320 NZD
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
November 4, 2026
Retailer 15$4,984 NZD
Retailer 11$5,217 NZD
Retailer 12$5,837 NZD
Retailer 3$5,930 NZD
Retailer 17$6,019 NZD
Retailer 6$6,106 NZD
Retailer 8$6,289 NZD
Retailer 4$6,616 NZD
Retailer 2$6,847 NZD
Retailer 7$6,874 NZD
Retailer 9$7,117 NZD
Retailer 5$7,635 NZD
Retailer 10$7,713 NZD
Retailer 14$8,131 NZD
Retailer 16$10,216 NZD
Retailer 13$11,064 NZD
NZ Jewellers$11,527 NZD

31 data points across 17 retailers

21 retailers$4,984 NZD to $11,064 NZD

A
Cheapest Retailer
-
$4,984 NZD
A
Retailer 2
-
$5,217 NZD
View
A
Retailer 3
-
$5,837 NZD
View
A
Retailer 4
-
$5,930 NZD
View
A
Retailer 5
-
$6,019 NZD
View
B+
Retailer 6
-
$6,100 NZD
View
B+
Retailer 7
-
$6,106 NZD
View
Final sale: no returns
B+
Retailer 8
-
$6,107 NZD
View
Retailer 9
-
$6,289 NZD
View
Price last confirmed 8 days ago
Retailer 10
-
$6,616 NZD
View
Price last confirmed 17 days ago
Retailer 11
-
$6,616 NZD
View
Price last confirmed 19 days ago
B+
Retailer 12
-
$6,847 NZD
View
Retailer 13
-
$6,870 NZD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$6,874 NZD
View
Retailer 15
-
$7,117 NZD
View
Price last confirmed 27 days ago
Retailer 16
-
$7,635 NZD
View
Price last confirmed 16 days ago
B+
Retailer 17
-
$7,713 NZD
View
B+
Retailer 18
-
$8,131 NZD
View
B
Retailer 19
-
$10,216 NZD
View
B
Retailer 20
-
$11,064 NZD
View
Most Expensive
NZ Jewellers
29855469-973e-45d7-8135-5312df9dd88e · Oct 17
$11,527 NZD
$6,483 USD
View
Price last confirmed 17 days ago
20 more retailers have this diamond
Prices start from $4,984 NZDSave up to $6,081 NZD

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
$4,984 NZD