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Marquise|Natural|GIA

1.00ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6555978887

Certificate GIA 6555978887

Diamond specifications and retailer prices

From $3,184 CAD
HK$17,800 HKD
As of November 1, 2026
Save $4,048 CAD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,834 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555978887. Listed at 20 retailers as of October 28, 2026, with a 127% 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555978887
Dimensions9.79 × 5.29 × 3.29 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle, Natural
Top View
9.79 mm5.29 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555978887
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.2%

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: $3,330 CAD|Low: $3,148 CAD|High: $7,259 CAD|Avg: $4,669 CAD|-3.0%
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
November 2, 2026
Retailer 9$3,184 CAD
Retailer 1$3,330 CAD
Retailer 2$3,707 CAD
Retailer 13$3,777 CAD
Retailer 3$3,900 CAD
Retailer 4$4,425 CAD
Retailer 5$4,426 CAD
Retailer 6$4,481 CAD
Retailer 12$4,866 CAD
Retailer 10$4,946 CAD
Retailer 8$5,194 CAD
Retailer 7$7,067 CAD
Retailer 11$7,232 CAD

26 data points across 13 retailers

20 retailers$3,184 CAD to $7,232 CAD

A
Cheapest Retailer
-
$3,184 CAD
HK$17,800 HKD
A
Retailer 2
-
$3,330 CAD
₹226,980 INR
View
A
Retailer 3
-
$3,707 CAD
SGD 3,585 SGD
View
B+
Retailer 4
-
$3,777 CAD
$2,703 USD
View
B+
Retailer 5
-
$3,900 CAD
$2,791 USD
View
Final sale: no returns
B+
Retailer 6
-
$3,956 CAD
$2,831 USD
View
B+
Retailer 7
-
$3,962 CAD
$2,835 USD
View
Retailer 8
-
$4,226 CAD
$3,024 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$4,226 CAD
$3,024 USD
View
Price last confirmed 15 days ago
Retailer 10
-
$4,388 CAD
$3,140 USD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
$4,425 CAD
$3,167 USD
View
B+
Retailer 12
-
$4,426 CAD
SGD 4,280 SGD
View
B+
Retailer 13
-
$4,481 CAD
£2,525 GBP
View
Retailer 14
-
$4,534 CAD
A$4,992 AUD
View
Price last confirmed 25 days ago
Retailer 15
-
$4,876 CAD
$3,489 USD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$4,946 CAD
€3,371 EUR
View
B+
Retailer 17
-
$5,194 CAD
ZAR 60,050 ZAR
View
B
Retailer 18
-
$7,067 CAD
£3,982 GBP
View
B
Retailer 19
-
$7,232 CAD
£4,075 GBP
View
Most Expensive
NZ Jewellers
6cdd9434-35a4-44a2-ba4e-55c626e8c816 · Oct 17
$8,834 CAD
$6,322 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from $3,184 CADSave up to $4,048 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
$3,184 CAD