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Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6551506419

Certificate GIA 6551506419

Diamond specifications and retailer prices

From $814 SGD
As of November 4, 2026
Save $980 SGD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,078 SGD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551506419. Listed at 21 retailers as of November 4, 2026, with a 120% 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

0.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6551506419
Dimensions5.02 × 5.06 × 3.11 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather
Top View
5.02 mm5.06 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551506419
Side View
Table 61.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,161 SGD|Low: $625 SGD|High: $1,819 SGD|Avg: $1,222 SGD|+4.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$820 SGD
Retailer 10$924 SGD
Retailer 2$977 SGD
Retailer 7$1,121 SGD
Retailer 1$1,161 SGD
Retailer 3$1,244 SGD
Retailer 4$1,262 SGD
Retailer 9$1,475 SGD
Retailer 5$1,515 SGD
Retailer 6$1,794 SGD

45 data points across 10 retailers

21 retailers$814 SGD to $1,794 SGD

A
Cheapest Retailer
-
$814 SGD
B+
Retailer 2
-
$820 SGD
View
Final sale: no returns
Retailer 3
-
$873 SGD
View
Price last confirmed 26 days ago
Retailer 4
-
$889 SGD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$889 SGD
View
B+
Retailer 6
-
$902 SGD
View
B+
Retailer 7
-
$924 SGD
View
B+
Retailer 8
-
$977 SGD
View
B+
Retailer 9
-
$1,027 SGD
View
B
Retailer 10
-
$1,121 SGD
View
B+
Retailer 11
-
$1,161 SGD
View
B+
Retailer 12
-
$1,180 SGD
View
B+
Retailer 13
-
$1,244 SGD
View
B+
Retailer 14
-
$1,262 SGD
View
B
Retailer 15
-
$1,370 SGD
View
B
Retailer 16
-
$1,374 SGD
View
Retailer 17
-
$1,475 SGD
View
Price last confirmed 32 days ago
B
Retailer 18
-
$1,515 SGD
View
B
Retailer 19
-
$1,794 SGD
View
Retailer 20
-
$2,834 SGD
View
Price under review
Most Expensive
NZ Jewellers
e0438737-15b9-4ae5-b609-315943596b88 · Nov 4
$3,078 SGD
$2,402 USD
View
Price under review
20 more retailers have this diamond
Prices start from $814 SGDSave up to $980 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
0.50ct Round
$814 SGD