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Marquise|Natural|GIA

0.51ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 5546310673

Certificate GIA 5546310673

Diamond specifications and retailer prices

From $793 SGD
As of November 6, 2026
Save $1,083 SGD (58%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,218 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded I 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 5546310673. Listed at 22 retailers as of November 4, 2026, with a 137% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.51
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546310673
Dimensions8.00 × 4.13 × 2.61 mm
L/W Ratio1.94
Top View
8.00 mm4.13 mm0.51 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546310673
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.2%

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 6
Current: $1,219 SGD|Low: $793 SGD|High: $1,902 SGD|Avg: $1,247 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$793 SGD
Retailer 6$965 SGD
Retailer 7$1,064 SGD
Retailer 1$1,219 SGD
Retailer 2$1,221 SGD
Retailer 4$1,449 SGD
Retailer 3$1,876 SGD

44 data points across 7 retailers

22 retailers$793 SGD to $1,876 SGD

B+
Cheapest Retailer
-
$793 SGD
Final sale: no returns
B+
Retailer 2
-
$854 SGD
View
B+
Retailer 3
-
$929 SGD
View
Retailer 4
-
$929 SGD
View
Price last confirmed 9 days ago
B
Retailer 5
-
$941 SGD
View
B
Retailer 6
-
$965 SGD
View
B
Retailer 7
-
$971 SGD
View
B
Retailer 8
-
$1,056 SGD
View
B
Retailer 9
-
$1,064 SGD
View
B
Retailer 10
-
$1,066 SGD
View
B
Retailer 11
-
$1,073 SGD
View
B
Retailer 12
-
$1,144 SGD
View
B
Retailer 13
-
$1,153 SGD
View
B
Retailer 14
-
$1,153 SGD
View
B
Retailer 15
-
$1,192 SGD
View
B
Retailer 16
-
$1,219 SGD
View
B
Retailer 17
-
$1,221 SGD
View
B
Retailer 18
-
$1,256 SGD
View
B
Retailer 19
-
$1,449 SGD
View
C
Retailer 20
-
$1,648 SGD
View
C
Retailer 21
-
$1,876 SGD
View
Most Expensive
NZ Jewellers
24b02595-8c7f-485d-a676-2f1c4e4f1c4a · Nov 5
$3,218 SGD
$2,511 USD
View
Price under review
21 more retailers have this diamond
Prices start from $793 SGDSave up to $1,083 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+
0.51ct Marquise
$793 SGD