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Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 3555909668

Certificate GIA 3555909668

Diamond specifications and retailer prices

From $3,819 CAD
$2,734 USD
As of October 31, 2026
Save $3,442 CAD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,261 CAD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555909668. Listed at 15 retailers as of October 31, 2026, with prices from $3,819 to $7,261, a $3,442 spread on the same certified stone. Helzberg Diamonds lists it at $7,261. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
G
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.66°
Pavilion angle38.05°
OriginNatural
Grading LabGIA
CertificateGIA 3555909668
Dimensions9.65 × 5.19 × 3.17 mm
L/W Ratio1.86
Culet sizeNone
Top View
9.65 mm5.19 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555909668
Side View
Table 59.0%Crown 40.66°Girdle: STK-VTKPavilion 38.05°Culet: NoneDepth 61.1%

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: $7,261 CAD|Low: $3,819 CAD|High: $7,540 CAD|Avg: $5,013 CAD|-3.7%
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 10$3,819 CAD
Retailer 15$3,890 CAD
Retailer 7$4,062 CAD
Retailer 11$4,117 CAD
Retailer 12$4,129 CAD
Retailer 8$4,465 CAD
Retailer 5$4,600 CAD
Retailer 3$4,913 CAD
Retailer 13$4,917 CAD
Retailer 4$5,034 CAD
Retailer 2$5,100 CAD
Retailer 9$5,297 CAD
Retailer 14$6,440 CAD
Retailer 6$6,857 CAD
Helzberg Diamonds$7,261 CAD

34 data points across 15 retailers

15 retailers$3,819 CAD to $7,261 CAD

A
Cheapest Retailer
-
$3,819 CAD
$2,734 USD
A
Retailer 2
-
$3,890 CAD
SGD 3,763 SGD
View
B+
Retailer 3
-
$4,062 CAD
$2,908 USD
View
B+
Retailer 4
-
$4,117 CAD
$2,947 USD
View
A
Retailer 5
-
$4,129 CAD
$2,956 USD
View
B+
Retailer 6
-
$4,465 CAD
£2,517 GBP
View
B+
Retailer 7
-
$4,600 CAD
SGD 4,450 SGD
View
B+
Retailer 8
-
$4,913 CAD
$3,517 USD
View
B+
Retailer 9
-
$4,917 CAD
$3,520 USD
View
B+
Retailer 10
-
$5,034 CAD
$3,604 USD
View
B+
Retailer 11
-
$5,100 CAD
€3,477 EUR
View
B+
Retailer 12
-
$5,297 CAD
$3,792 USD
View
B
Retailer 13
-
$6,440 CAD
$4,610 USD
View
B
Retailer 14
-
$6,857 CAD
$4,909 USD
View
Most Expensive
B
Helzberg Diamonds
XZRJLLLPGPMMO · Nov 1
$7,261 CAD
$5,198 USD
View
14 more retailers have this diamond
Prices start from $3,819 CADSave up to $3,442 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
$3,819 CAD