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Round|Natural|GIA

0.28ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2556777817

Certificate GIA 2556777817

Diamond specifications and retailer prices

From $109 USD
As of November 6, 2026
Save $243 USD (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $352 USD at B2C Jewels · As of November 6, 2026
View at B2C Jewels

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 2556777817. Listed at 6 retailers as of November 6, 2026, with prices from $109 to $352, a $243 spread on the same certified stone. B2C Jewels lists it at $352. 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
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556777817
Dimensions4.24 × 4.25 × 2.58 mm
L/W Ratio1.00
Star length55%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
4.24 mm4.25 mm0.28 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556777817
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.7%

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: $352 USD|Low: $109 USD|High: $353 USD|Avg: $211 USD|+2.6%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$109 USD
Retailer 5$140 USD
Retailer 4$171 USD
Retailer 6$180 USD
Retailer 3$303 USD
B2C Jewels$352 USD

41 data points across 6 retailers

6 retailers$109 USD to $352 USD

A
Cheapest Retailer
-
$109 USD
A
Retailer 2
-
$140 USD
View
A
Retailer 3
-
$171 USD
View
Retailer 4
-
$180 USD
View
Price last confirmed 43 days ago
B+
Retailer 5
-
$303 USD
View
Most Expensive
B+
B2C Jewels
35656576 · Nov 6
$352 USD
View
5 more retailers have this diamond
Prices start from $109 USDSave up to $243 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
$109 USD