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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 $3,916 CAD
HK$21,900 HKD
As of November 1, 2026
Save $4,777 CAD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,056 CAD 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
Color
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: $9,056 CAD|Low: $3,880 CAD|High: $9,056 CAD|Avg: $5,713 CAD
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 1, 2026
Retailer 13$3,916 CAD
Retailer 2$4,102 CAD
Retailer 3$4,569 CAD
Retailer 17$4,659 CAD
Retailer 16$4,729 CAD
Retailer 6$4,797 CAD
Retailer 8$4,942 CAD
Retailer 4$5,198 CAD
Retailer 7$5,402 CAD
Retailer 11$5,433 CAD
Retailer 9$5,593 CAD
Retailer 5$5,998 CAD
Retailer 14$6,087 CAD
Retailer 12$6,389 CAD
Retailer 15$8,028 CAD
Retailer 10$8,693 CAD
NZ Jewellers$9,056 CAD

30 data points across 17 retailers

21 retailers$3,916 CAD to $8,693 CAD

A
Cheapest Retailer
-
$3,916 CAD
HK$21,900 HKD
A
Retailer 2
-
$4,102 CAD
₹279,662 INR
View
A
Retailer 3
-
$4,569 CAD
SGD 4,420 SGD
View
A
Retailer 4
-
$4,659 CAD
$3,335 USD
View
A
Retailer 5
-
$4,729 CAD
$3,385 USD
View
B+
Retailer 6
-
$4,793 CAD
$3,431 USD
View
B+
Retailer 7
-
$4,797 CAD
$3,434 USD
View
Final sale: no returns
B+
Retailer 8
-
$4,798 CAD
$3,435 USD
View
B+
Retailer 9
-
$4,942 CAD
SGD 4,781 SGD
View
Retailer 10
-
$5,198 CAD
$3,721 USD
View
Price last confirmed 14 days ago
Retailer 11
-
$5,198 CAD
$3,721 USD
View
Price last confirmed 16 days ago
Retailer 12
-
$5,398 CAD
$3,864 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$5,402 CAD
$3,867 USD
View
B+
Retailer 14
-
$5,433 CAD
£3,062 GBP
View
Retailer 15
-
$5,593 CAD
A$6,160 AUD
View
Price last confirmed 24 days ago
Retailer 16
-
$5,998 CAD
$4,294 USD
View
Price last confirmed 14 days ago
B+
Retailer 17
-
$6,087 CAD
€4,150 EUR
View
B+
Retailer 18
-
$6,389 CAD
ZAR 73,892 ZAR
View
B
Retailer 19
-
$8,028 CAD
£4,525 GBP
View
B
Retailer 20
-
$8,693 CAD
£4,900 GBP
View
Most Expensive
NZ Jewellers
29855469-973e-45d7-8135-5312df9dd88e · Oct 17
$9,056 CAD
$6,483 USD
View
Price last confirmed 15 days ago
20 more retailers have this diamond
Prices start from $3,916 CADSave up to $4,777 CAD

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
$3,916 CAD