Round|Natural|GIA

0.28ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1333459802

Certificate GIA 1333459802

Diamond specifications and retailer prices

From $139 USD
As of November 4, 2026
Save $738 USD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $877 USD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.28ct natural round diamond

This 0.28ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1333459802. Listed at 10 retailers as of November 4, 2026, with prices from $139 to $877, a $738 spread on the same certified stone. NZ Jewellers lists it at $877. 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

0.28
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle31.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1333459802
Dimensions4.28 × 4.25 × 2.56 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
4.28 mm4.25 mm0.28 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1333459802
Side View
Table 60.0%Crown 31.5°Girdle: THN-MEDPavilion 41.8°Culet: NoneDepth 60.1%

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: $877 USD|Low: $137 USD|High: $877 USD|Avg: $289 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$139 USD
Retailer 8$194 USD
Retailer 4$195 USD
Retailer 11$196 USD
Retailer 7$208 USD
Retailer 5$216 USD
Retailer 10$223 USD
Retailer 9$261 USD
Retailer 2$401 USD
Retailer 3$402 USD
NZ Jewellers$877 USD

20 data points across 11 retailers

10 retailers$139 USD to $877 USD

A
Cheapest Retailer
-
$139 USD
A
Retailer 2
-
$194 USD
View
A
Retailer 3
-
$195 USD
View
Retailer 4
-
$208 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$210 USD
View
Price last confirmed 43 days ago
A
Retailer 6
-
$216 USD
View
A
Retailer 7
-
$223 USD
View
B+
Retailer 8
-
$261 USD
View
B
Retailer 9
-
$401 USD
View
Most Expensive
B
NZ Jewellers
5b400fe9-67f0-4494-a134-b1020e23b612 · Nov 4
$877 USD
View
9 more retailers have this diamond
Prices start from $139 USDSave up to $738 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
0.28ct Round
$139 USD