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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1453131886

Certificate GIA 1453131886

Diamond specifications and retailer prices

From $621 SGD
As of November 4, 2026
Save $812 SGD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,381 SGD at NZ Jewellers · As of September 24, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1453131886. Listed at 18 retailers as of November 2, 2026, with a 131% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1453131886
Dimensions5.12 × 5.09 × 3.13 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp
Top View
5.12 mm5.09 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1453131886
Side View
Table 57.0%Crown 34°Girdle: THN-STKPavilion 41°Culet: NoneDepth 61.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $2,381 SGD|Low: $621 SGD|High: $2,381 SGD|Avg: $1,061 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$621 SGD
Retailer 7$632 SGD
Retailer 3$646 SGD
Retailer 4$760 SGD
Retailer 2$798 SGD
Retailer 8$881 SGD
Retailer 5$929 SGD
Retailer 6$963 SGD
Retailer 9$1,433 SGD
NZ Jewellers$2,381 SGD

39 data points across 10 retailers

18 retailers$621 SGD to $1,433 SGD

A
Cheapest Retailer
-
$621 SGD
Retailer 2
-
$621 SGD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$632 SGD
View
B+
Retailer 4
-
$646 SGD
View
B+
Retailer 5
-
$669 SGD
View
Retailer 6
-
$669 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$717 SGD
View
Retailer 8
-
$717 SGD
View
Price last confirmed 45 days ago
B+
Retailer 9
-
$760 SGD
View
B+
Retailer 10
-
$788 SGD
View
B+
Retailer 11
-
$798 SGD
View
B+
Retailer 12
-
$810 SGD
View
B
Retailer 13
-
$881 SGD
View
B
Retailer 14
-
$929 SGD
View
B+
Retailer 15
-
$963 SGD
View
B
Retailer 16
-
$1,433 SGD
View
Retailer 17
-
$2,381 SGD
View
Price under review
Most Expensive
NZ Jewellers
330fd32f-c173-494c-acba-a0e135a55120 · Sep 24
$2,381 SGD
$1,864 USD
View
Price under review
17 more retailers have this diamond
Prices start from $621 SGDSave up to $812 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
$621 SGD