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Marquise|Natural|GIA

1.00ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 2554040159

Certificate GIA 2554040159

Diamond specifications and retailer prices

From $3,342 SGD
As of November 5, 2026
Save $3,836 SGD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,178 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554040159. Listed at 15 retailers as of November 5, 2026, with prices from $3,342 to $7,178, a $3,836 spread on the same certified stone. NZ Jewellers lists it at $7,178. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554040159
Dimensions10.02 × 5.22 × 3.24 mm
L/W Ratio1.92
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
10.02 mm5.22 mm1.00 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554040159
Side View
Table 60.0%CrownGirdlePavilionCulet: NDepth 62.0%

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 5
Current: $7,178 SGD|Low: $3,342 SGD|High: $7,178 SGD|Avg: $4,409 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
November 6, 2026
Retailer 4$3,342 SGD
Retailer 12$3,445 SGD
Retailer 3$3,505 SGD
Retailer 8$3,732 SGD
Retailer 9$3,732 SGD
Retailer 10$3,876 SGD
Retailer 2$4,051 SGD
Retailer 5$4,263 SGD
Retailer 11$4,306 SGD
Retailer 7$4,821 SGD
Retailer 6$6,871 SGD
NZ Jewellers$7,178 SGD

40 data points across 12 retailers

15 retailers$3,342 SGD to $7,178 SGD

B+
Cheapest Retailer
-
$3,342 SGD
B+
Retailer 2
-
$3,445 SGD
View
Final sale: no returns
B+
Retailer 3
-
$3,505 SGD
View
Retailer 4
-
$3,732 SGD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$3,732 SGD
View
B
Retailer 6
-
$3,768 SGD
View
B
Retailer 7
-
$3,876 SGD
View
B
Retailer 8
-
$3,947 SGD
View
B
Retailer 9
-
$4,051 SGD
View
B
Retailer 10
-
$4,263 SGD
View
B
Retailer 11
-
$4,306 SGD
View
Retailer 12
-
$4,780 SGD
View
Price last confirmed 14 days ago
B
Retailer 13
-
$4,821 SGD
View
C
Retailer 14
-
$6,871 SGD
View
Most Expensive
C
NZ Jewellers
130f251f-21d6-4e17-b20d-36eb62164a44 · Nov 5
$7,178 SGD
$5,601 USD
View
14 more retailers have this diamond
Prices start from $3,342 SGDSave up to $3,836 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
$3,342 SGD