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Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 3545350624

Certificate GIA 3545350624

Diamond specifications and retailer prices

From $3,719 SGD
As of November 4, 2026
Save $5,021 SGD (57%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $8,741 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545350624. Listed at 27 retailers as of November 4, 2026, with prices from $3,719 to $8,741, a $5,021 spread on the same certified stone. NZ Jewellers lists it at $8,741. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.75°
Pavilion angle41.44°
OriginNatural
Grading LabGIA
CertificateGIA 3545350624
Dimensions10.02 × 5.25 × 3.30 mm
L/W Ratio1.91
Top View
10.02 mm5.25 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3545350624
Side View
Table 60.0%Crown 34.75°Girdle: MED-THKPavilion 41.44°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,504 SGD|Low: $3,295 SGD|High: $8,491 SGD|Avg: $5,106 SGD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6$3,719 SGD
Retailer 2$3,880 SGD
Retailer 8$3,955 SGD
Retailer 9$4,195 SGD
Retailer 3$4,546 SGD
Retailer 11$4,720 SGD
Retailer 4$5,052 SGD
Retailer 10$5,374 SGD
Retailer 1$5,504 SGD
Retailer 5$6,123 SGD
Retailer 7$8,391 SGD

46 data points across 11 retailers

27 retailers$3,719 SGD to $8,741 SGD

A
Cheapest Retailer
-
$3,719 SGD
A
Retailer 2
-
$3,855 SGD
View
A
Retailer 3
-
$3,880 SGD
View
A
Retailer 4
-
$3,953 SGD
View
A
Retailer 5
-
$3,955 SGD
View
A
Retailer 6
-
$4,035 SGD
View
A
Retailer 7
-
$4,172 SGD
View
B+
Retailer 8
-
$4,195 SGD
View
Final sale: no returns
B+
Retailer 9
-
$4,368 SGD
View
Retailer 10
-
$4,546 SGD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$4,546 SGD
View
B+
Retailer 12
-
$4,720 SGD
View
Retailer 13
-
$4,775 SGD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$4,872 SGD
View
B+
Retailer 15
-
$4,943 SGD
View
B+
Retailer 16
-
$5,052 SGD
View
B+
Retailer 17
-
$5,058 SGD
View
B+
Retailer 18
-
$5,058 SGD
View
B+
Retailer 19
-
$5,224 SGD
View
B+
Retailer 20
-
$5,245 SGD
View
Retailer 21
-
$5,374 SGD
View
Price last confirmed 29 days ago
B+
Retailer 22
-
$5,380 SGD
View
B+
Retailer 23
-
$5,504 SGD
View
B+
Retailer 24
-
$6,123 SGD
View
B
Retailer 25
-
$7,250 SGD
View
B
Retailer 26
-
$8,391 SGD
View
Most Expensive
B
NZ Jewellers
e5088513-1b1a-4e49-8f0d-b3674c8ddcc2 · Nov 5
$8,741 SGD
$6,843 USD
View
26 more retailers have this diamond
Prices start from $3,719 SGDSave up to $5,021 SGD

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
$3,719 SGD