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Marquise|Natural|GIA

1.00ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2556641575

Certificate GIA 2556641575

Diamond specifications and retailer prices

From $2,386 CAD
SGD 2,308 SGD
As of October 31, 2026
Save $2,240 CAD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,626 CAD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

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 2556641575. Listed at 13 retailers as of October 27, 2026, with prices from $2,386 to $4,626, a $2,240 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,626. 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
SymmetryExcellent
FluorescenceNone
Crown angle39.94°
Pavilion angle40.11°
OriginNatural
Grading LabGIA
CertificateGIA 2556641575
Dimensions9.80 × 5.19 × 3.33 mm
L/W Ratio1.89
Culet sizeNone
Top View
9.80 mm5.19 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556641575
Side View
Table 58.0%Crown 39.94°Girdle: STK-THKPavilion 40.11°Culet: NoneDepth 64.3%

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: $3,981 CAD|Low: $2,386 CAD|High: $4,717 CAD|Avg: $3,442 CAD|+7.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 2, 2026
Retailer 10$2,386 CAD
Retailer 8$2,802 CAD
Retailer 7$2,826 CAD
Retailer 6$2,851 CAD
Retailer 3$3,076 CAD
Retailer 4$3,093 CAD
Retailer 11$3,357 CAD
Retailer 5$3,545 CAD
Retailer 2$3,576 CAD
Retailer 1$3,981 CAD
Retailer 9$4,308 CAD
Wholesale Diamonds Direct$4,626 CAD

37 data points across 12 retailers

13 retailers$2,386 CAD to $4,626 CAD

A
Cheapest Retailer
-
$2,386 CAD
SGD 2,308 SGD
A
Retailer 2
-
$2,802 CAD
$2,006 USD
View
A
Retailer 3
-
$2,826 CAD
$2,023 USD
View
A
Retailer 4
-
$2,851 CAD
$2,041 USD
View
A
Retailer 5
-
$3,076 CAD
SGD 2,976 SGD
View
A
Retailer 6
-
$3,093 CAD
£1,744 GBP
View
A
Retailer 7
-
$3,357 CAD
$2,403 USD
View
A
Retailer 8
-
$3,545 CAD
$2,538 USD
View
B+
Retailer 9
-
$3,550 CAD
$2,541 USD
View
B+
Retailer 10
-
$3,576 CAD
$2,560 USD
View
B+
Retailer 11
-
$3,981 CAD
€2,714 EUR
View
B+
Retailer 12
-
$4,308 CAD
$3,084 USD
View
Most Expensive
B
Wholesale Diamonds Direct
610445789 · Oct 27
$4,626 CAD
$3,312 USD
View
12 more retailers have this diamond
Prices start from $2,386 CADSave up to $2,240 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
$2,386 CAD