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Marquise|Natural|GIA

1.00ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 1548811201

Certificate GIA 1548811201

Diamond specifications and retailer prices

From $3,358 SGD
As of November 4, 2026
Save $3,850 SGD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,208 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 J 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 1548811201. Listed at 20 retailers as of November 4, 2026, with prices from $3,358 to $7,208, a $3,850 spread on the same certified stone. NZ Jewellers lists it at $7,208. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548811201
Dimensions10.08 × 5.19 × 3.14 mm
L/W Ratio1.94
Key to symbols
Feather, Cavity, Indented Natural
Top View
10.08 mm5.19 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1548811201
Side View
Table 58.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,208 SGD|Low: $2,882 SGD|High: $7,208 SGD|Avg: $4,527 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 3$3,358 SGD
Retailer 9$3,460 SGD
Retailer 5$3,665 SGD
Retailer 12$3,749 SGD
Retailer 13$3,749 SGD
Retailer 11$3,892 SGD
Retailer 6$4,281 SGD
Retailer 10$4,436 SGD
Retailer 2$4,532 SGD
Retailer 4$4,605 SGD
Retailer 7$5,050 SGD
Retailer 8$6,900 SGD
NZ Jewellers$7,208 SGD

45 data points across 13 retailers

20 retailers$3,358 SGD to $7,208 SGD

B+
Cheapest Retailer
-
$3,358 SGD
B
Retailer 2
-
$3,460 SGD
View
Final sale: no returns
B
Retailer 3
-
$3,521 SGD
View
B+
Retailer 4
-
$3,665 SGD
View
B
Retailer 5
-
$3,749 SGD
View
Retailer 6
-
$3,749 SGD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$3,892 SGD
View
Retailer 8
-
$4,125 SGD
View
Price last confirmed 67 days ago
B
Retailer 9
-
$4,268 SGD
View
B
Retailer 10
-
$4,268 SGD
View
B
Retailer 11
-
$4,281 SGD
View
B
Retailer 12
-
$4,325 SGD
View
B
Retailer 13
-
$4,409 SGD
View
Retailer 14
-
$4,436 SGD
View
Price last confirmed 34 days ago
B
Retailer 15
-
$4,532 SGD
View
B
Retailer 16
-
$4,605 SGD
View
Retailer 17
-
$4,800 SGD
View
Price last confirmed 15 days ago
B
Retailer 18
-
$5,050 SGD
View
B
Retailer 19
-
$6,900 SGD
View
Most Expensive
B
NZ Jewellers
f36cd918-2cfb-49aa-91f3-8c1954f56ac2 · Nov 5
$7,208 SGD
$5,624 USD
View
19 more retailers have this diamond
Prices start from $3,358 SGDSave up to $3,850 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.

B+
1.00ct Marquise
$3,358 SGD