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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 6552378837

Certificate GIA 6552378837

Diamond specifications and retailer prices

From $1,074 SGD
As of November 4, 2026
Save $1,273 SGD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,027 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552378837. Listed at 22 retailers as of November 4, 2026, with a 119% 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

0.50
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552378837
Dimensions8.79 × 3.98 × 2.50 mm
L/W Ratio2.21
Girdle conditionFaceted
Culet sizeNone
Top View
8.79 mm3.98 mm0.50 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552378837
Side View
Table 59.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 62.8%

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: $4,027 SGD|Low: $895 SGD|High: $4,027 SGD|Avg: $1,711 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
Retailer 14
Retailer 15
November 6, 2026
Retailer 13$1,074 SGD
Retailer 11$1,079 SGD
Retailer 5$1,164 SGD
Retailer 4$1,169 SGD
Retailer 15$1,208 SGD
Retailer 3$1,311 SGD
Retailer 6$1,342 SGD
Retailer 12$1,367 SGD
Retailer 2$1,491 SGD
Retailer 14$1,678 SGD
Retailer 10$1,797 SGD
Retailer 8$1,981 SGD
Retailer 7$2,078 SGD
Retailer 9$2,348 SGD
NZ Jewellers$4,027 SGD

46 data points across 15 retailers

22 retailers$1,074 SGD to $2,348 SGD

Retailer 1
-
$751 SGD
Price last confirmed 63 days ago
B+
Retailer 2
-
$1,074 SGD
View
Final sale: no returns
B+
Retailer 3
-
$1,077 SGD
View
Retailer 4
-
$1,079 SGD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$1,152 SGD
View
B+
Retailer 6
-
$1,164 SGD
View
Retailer 7
-
$1,164 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,169 SGD
View
B+
Retailer 9
-
$1,175 SGD
View
B+
Retailer 10
-
$1,208 SGD
View
B
Retailer 11
-
$1,311 SGD
View
B
Retailer 12
-
$1,342 SGD
View
B
Retailer 13
-
$1,367 SGD
View
B
Retailer 14
-
$1,443 SGD
View
B
Retailer 15
-
$1,491 SGD
View
Retailer 16
-
$1,678 SGD
View
Price last confirmed 33 days ago
B
Retailer 17
-
$1,695 SGD
View
B
Retailer 18
-
$1,797 SGD
View
B
Retailer 19
-
$1,981 SGD
View
B
Retailer 20
-
$2,078 SGD
View
B
Retailer 21
-
$2,348 SGD
View
Most Expensive
NZ Jewellers
7f37b805-ce11-4328-9561-62bd84e40bac · Nov 5
$4,027 SGD
$3,153 USD
View
Price under review
21 more retailers have this diamond
Prices start from $1,074 SGDSave up to $1,273 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+
0.50ct Marquise
$1,074 SGD