Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1453131886

Certificate GIA 1453131886

Diamond specifications and retailer prices

From $865 NZD
As of November 4, 2026
Save $1,131 NZD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,316 NZD 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

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

Price History

Last verified: Nov 4
Current: $3,316 NZD|Low: $865 NZD|High: $3,316 NZD|Avg: $1,478 NZD
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$865 NZD
Retailer 7$881 NZD
Retailer 3$900 NZD
Retailer 4$1,058 NZD
Retailer 2$1,112 NZD
Retailer 8$1,227 NZD
Retailer 5$1,293 NZD
Retailer 6$1,341 NZD
Retailer 9$1,996 NZD
NZ Jewellers$3,316 NZD

39 data points across 10 retailers

18 retailers$865 NZD to $1,996 NZD

A
Cheapest Retailer
-
$865 NZD
Retailer 2
-
$865 NZD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$881 NZD
View
B+
Retailer 4
-
$900 NZD
View
B+
Retailer 5
-
$932 NZD
View
Retailer 6
-
$932 NZD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$998 NZD
View
Retailer 8
-
$998 NZD
View
Price last confirmed 45 days ago
B+
Retailer 9
-
$1,058 NZD
View
B+
Retailer 10
-
$1,098 NZD
View
B+
Retailer 11
-
$1,112 NZD
View
B+
Retailer 12
-
$1,128 NZD
View
B
Retailer 13
-
$1,227 NZD
View
B
Retailer 14
-
$1,293 NZD
View
B+
Retailer 15
-
$1,341 NZD
View
B
Retailer 16
-
$1,996 NZD
View
Retailer 17
-
$3,316 NZD
View
Price under review
Most Expensive
NZ Jewellers
330fd32f-c173-494c-acba-a0e135a55120 · Sep 24
$3,316 NZD
$1,864 USD
View
Price under review
17 more retailers have this diamond
Prices start from $865 NZDSave up to $1,131 NZD

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
$865 NZD