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Marquise|Natural|GIA

1.00ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 3555958830

Certificate GIA 3555958830

Diamond specifications and retailer prices

From $2,848 CAD
SGD 2,755 SGD
As of October 31, 2026
Save $2,692 CAD (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,540 CAD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555958830. Listed at 13 retailers as of October 31, 2026, with prices from $2,848 to $5,540, a $2,692 spread on the same certified stone. Helzberg Diamonds lists it at $5,540. 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
E
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40°
Pavilion angle40.33°
OriginNatural
Grading LabGIA
CertificateGIA 3555958830
Dimensions9.82 × 5.18 × 3.32 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.82 mm5.18 mm1.00 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555958830
Side View
Table 59.0%Crown 40°Girdle: STK-THKPavilion 40.33°Culet: NoneDepth 64.0%

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: $5,540 CAD|Low: $2,848 CAD|High: $5,775 CAD|Avg: $3,756 CAD|-4.1%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 10$2,848 CAD
Retailer 9$3,066 CAD
Retailer 11$3,093 CAD
Retailer 7$3,122 CAD
Retailer 8$3,172 CAD
Retailer 2$3,344 CAD
Retailer 5$3,367 CAD
Retailer 12$3,656 CAD
Retailer 3$3,660 CAD
Retailer 4$3,854 CAD
Retailer 6$3,981 CAD
Retailer 13$5,075 CAD
Helzberg Diamonds$5,540 CAD

38 data points across 13 retailers

13 retailers$2,848 CAD to $5,540 CAD

A
Cheapest Retailer
-
$2,848 CAD
SGD 2,755 SGD
A
Retailer 2
-
$3,066 CAD
$2,195 USD
View
A
Retailer 3
-
$3,093 CAD
$2,214 USD
View
A
Retailer 4
-
$3,122 CAD
$2,235 USD
View
A
Retailer 5
-
$3,172 CAD
$2,271 USD
View
A
Retailer 6
-
$3,344 CAD
£1,885 GBP
View
A
Retailer 7
-
$3,367 CAD
SGD 3,257 SGD
View
A
Retailer 8
-
$3,656 CAD
$2,617 USD
View
A
Retailer 9
-
$3,660 CAD
$2,620 USD
View
A
Retailer 10
-
$3,854 CAD
$2,759 USD
View
A
Retailer 11
-
$3,981 CAD
€2,714 EUR
View
B+
Retailer 12
-
$5,075 CAD
$3,633 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRJLLLPLOOJG · Oct 31
$5,540 CAD
$3,966 USD
View
12 more retailers have this diamond
Prices start from $2,848 CADSave up to $2,692 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
$2,848 CAD