Marquise|Natural|GIA

1.00ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6541818171

Certificate GIA 6541818171

Diamond specifications and retailer prices

From $4,152 CAD
$2,972 USD
As of November 2, 2026
Save $4,393 CAD (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,545 CAD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541818171. Listed at 16 retailers as of October 30, 2026, with prices from $4,152 to $8,545, a $4,393 spread on the same certified stone. NZ Jewellers lists it at $8,545. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541818171
Dimensions9.77 × 5.26 × 3.19 mm
L/W Ratio1.86
Top View
9.77 mm5.26 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541818171
Side View
Table 60.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $8,545 CAD|Low: $4,136 CAD|High: $8,545 CAD|Avg: $5,400 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
November 2, 2026
Retailer 7$4,152 CAD
Retailer 12$4,444 CAD
Retailer 15$4,444 CAD
Retailer 14$4,614 CAD
Retailer 6$4,779 CAD
Retailer 4$5,043 CAD
Retailer 5$5,043 CAD
Retailer 9$5,083 CAD
Retailer 13$5,127 CAD
Retailer 3$5,210 CAD
Retailer 16$5,259 CAD
Retailer 2$5,401 CAD
Retailer 8$5,557 CAD
Retailer 11$6,028 CAD
Retailer 10$8,201 CAD
NZ Jewellers$8,545 CAD

43 data points across 16 retailers

16 retailers$4,152 CAD to $8,545 CAD

B+
Cheapest Retailer
-
$4,152 CAD
$2,972 USD
B+
Retailer 2
-
$4,444 CAD
$3,181 USD
View
B+
Retailer 3
-
$4,444 CAD
$3,181 USD
View
B+
Retailer 4
-
$4,614 CAD
$3,303 USD
View
B
Retailer 5
-
$4,779 CAD
$3,421 USD
View
B+
Retailer 6
-
$5,043 CAD
$3,610 USD
View
B+
Retailer 7
-
$5,043 CAD
$3,610 USD
View
B+
Retailer 8
-
$5,083 CAD
£2,865 GBP
View
B
Retailer 9
-
$5,127 CAD
$3,670 USD
View
B
Retailer 10
-
$5,210 CAD
$3,730 USD
View
Retailer 11
-
$5,259 CAD
A$5,792 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
$5,401 CAD
€3,682 EUR
View
Retailer 13
-
$5,557 CAD
$3,978 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$6,028 CAD
ZAR 69,719 ZAR
View
B
Retailer 15
-
$8,201 CAD
£4,623 GBP
View
Most Expensive
B
NZ Jewellers
8949f649-d9ed-47ef-bd18-7dc83a964ae4 · Oct 30
$8,545 CAD
$6,117 USD
View
15 more retailers have this diamond
Prices start from $4,152 CADSave up to $4,393 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.

B+
1.00ct Marquise
$4,152 CAD