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Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 5546556292

Certificate GIA 5546556292

Diamond specifications and retailer prices

From $3,430 SGD
As of November 6, 2026
Save $4,267 SGD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,018 SGD at NZ Jewellers · As of October 17, 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 5546556292. Listed at 16 retailers as of November 2, 2026, with a 124% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546556292
Dimensions10.00 × 5.00 × 3.18 mm
L/W Ratio2.00
Key to symbols
Crystal, Feather, Needle, Pinpoint
Top View
10.00 mm5.00 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5546556292
Side View
Table 61.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 63.6%

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: Nov 6
Current: $3,430 SGD|Low: $3,400 SGD|High: $7,789 SGD|Avg: $4,591 SGD|-2.5%
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 1$3,430 SGD
Retailer 6$3,433 SGD
Retailer 2$3,656 SGD
Retailer 3$4,049 SGD
Retailer 10$4,362 SGD
Retailer 8$4,451 SGD
Retailer 4$4,777 SGD
Retailer 11$4,929 SGD
Retailer 5$5,047 SGD
Retailer 9$5,380 SGD
Retailer 7$7,697 SGD

34 data points across 11 retailers

16 retailers$3,430 SGD to $7,697 SGD

A
Cheapest Retailer
-
$3,430 SGD
A
Retailer 2
-
$3,433 SGD
View
A
Retailer 3
-
$3,656 SGD
View
Final sale: no returns
A
Retailer 4
-
$3,838 SGD
View
A
Retailer 5
-
$4,049 SGD
View
B+
Retailer 6
-
$4,361 SGD
View
B+
Retailer 7
-
$4,362 SGD
View
Retailer 8
-
$4,451 SGD
View
Price last confirmed 14 days ago
Retailer 9
-
$4,602 SGD
View
Price last confirmed 19 days ago
B+
Retailer 10
-
$4,777 SGD
View
Retailer 11
-
$4,780 SGD
View
Price last confirmed 20 days ago
Retailer 12
-
$4,929 SGD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
$5,047 SGD
View
B
Retailer 14
-
$6,464 SGD
View
B
Retailer 15
-
$7,697 SGD
View
Most Expensive
NZ Jewellers
989b9f8a-e277-426e-bb93-b5b6615f835e · Oct 17
$8,018 SGD
$6,277 USD
View
Price last confirmed 19 days ago
15 more retailers have this diamond
Prices start from $3,430 SGDSave up to $4,267 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
$3,430 SGD