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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7551885928

Certificate GIA 7551885928

Diamond specifications and retailer prices

From $583 NZD
As of November 6, 2026
Save $2,493 NZD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,076 NZD 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551885928. Listed at 11 retailers as of November 4, 2026, with prices from $583 to $3,076, a $2,493 spread on the same certified stone. NZ Jewellers lists it at $3,076. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7551885928
Dimensions5.06 × 5.08 × 3.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Key to symbols
Crystal, Feather
Top View
5.06 mm5.08 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551885928
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.7%

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 6
Current: $3,076 NZD|Low: $583 NZD|High: $3,076 NZD|Avg: $1,209 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$583 NZD
Retailer 7$669 NZD
Retailer 3$803 NZD
Retailer 4$837 NZD
Retailer 8$864 NZD
Retailer 10$1,041 NZD
Retailer 9$1,064 NZD
Retailer 11$1,102 NZD
Retailer 5$1,284 NZD
Retailer 6$1,851 NZD
NZ Jewellers$3,076 NZD

45 data points across 11 retailers

11 retailers$583 NZD to $3,076 NZD

A
Cheapest Retailer
-
$583 NZD
A
Retailer 2
-
$669 NZD
View
A
Retailer 3
-
$803 NZD
View
A
Retailer 4
-
$837 NZD
View
A
Retailer 5
-
$864 NZD
View
B+
Retailer 6
-
$1,062 NZD
View
B+
Retailer 7
-
$1,064 NZD
View
B+
Retailer 8
-
$1,102 NZD
View
B
Retailer 9
-
$1,284 NZD
View
B
Retailer 10
-
$1,851 NZD
View
Most Expensive
B
NZ Jewellers
32ccb0fc-4396-44df-8d8a-3e4ce5cbf3b9 · Nov 4
$3,076 NZD
$1,705 USD
View
10 more retailers have this diamond
Prices start from $583 NZDSave up to $2,493 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
$583 NZD