Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7551885928

Certificate GIA 7551885928

Diamond specifications and retailer prices

From $323 USD
As of November 6, 2026
Save $1,382 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,705 USD 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 $323 to $1,705, a $1,382 spread on the same certified stone. NZ Jewellers lists it at $1,705. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,705 USD|Low: $323 USD|High: $1,705 USD|Avg: $670 USD
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$323 USD
Retailer 7$371 USD
Retailer 3$445 USD
Retailer 4$464 USD
Retailer 8$479 USD
Retailer 10$577 USD
Retailer 9$590 USD
Retailer 11$611 USD
Retailer 5$712 USD
Retailer 6$1,026 USD
NZ Jewellers$1,705 USD

45 data points across 11 retailers

11 retailers$323 USD to $1,705 USD

A
Cheapest Retailer
-
$323 USD
A
Retailer 2
-
$371 USD
View
A
Retailer 3
-
$445 USD
View
A
Retailer 4
-
$464 USD
View
A
Retailer 5
-
$479 USD
View
B+
Retailer 6
-
$589 USD
View
B+
Retailer 7
-
$590 USD
View
B+
Retailer 8
-
$611 USD
View
B
Retailer 9
-
$712 USD
View
B
Retailer 10
-
$1,026 USD
View
Most Expensive
B
NZ Jewellers
32ccb0fc-4396-44df-8d8a-3e4ce5cbf3b9 · Nov 4
$1,705 USD
View
10 more retailers have this diamond
Prices start from $323 USDSave up to $1,382 USD

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
$323 USD