Round|Natural|GIA

3.05ct K SI1 Round Natural Diamond

GD • K/SI1 • GIA 5231781775

Certificate GIA 5231781775

Diamond specifications and retailer prices

From $15,127 USD
As of November 4, 2026
Save $6,189 USD (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $21,316 USD at Ritani · As of November 4, 2026
View at Ritani

About this 3.05ct natural round diamond

This 3.05ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 5231781775. Listed at 6 retailers as of November 4, 2026, with prices from $15,127 to $21,316, a $6,189 spread on the same certified stone. Ritani lists it at $21,316. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.05
Carat
K
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceStrong
Crown angle36°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5231781775
Dimensions9.05 × 9.27 × 5.78 mm
L/W Ratio1.02
Top View
9.05 mm9.27 mm3.05 ctK / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceStrong
CertificateGIA 5231781775
Side View
Table 61.0%Crown 36°Girdle: STK-THKPavilion 41.8°Culet: Very SmallDepth 63.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $17,614 USD|Low: $14,949 USD|High: $21,316 USD|Avg: $17,918 USD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Ritani
November 6, 2026
Retailer 5$15,127 USD
Retailer 4$15,836 USD
Retailer 3$16,855 USD
Retailer 1$17,614 USD
Retailer 2$20,014 USD
Ritani$21,316 USD

41 data points across 6 retailers

6 retailers$15,127 USD to $21,316 USD

B+
Cheapest Retailer
-
$15,127 USD
B+
Retailer 2
-
$15,836 USD
View
B+
Retailer 3
-
$16,855 USD
View
B+
Retailer 4
-
$17,614 USD
View
B+
Retailer 5
-
$20,014 USD
View
Most Expensive
B
Ritani
D-5PY649W4GF · Nov 4
$21,316 USD
View
5 more retailers have this diamond
Prices start from $15,127 USDSave up to $6,189 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.

B+
3.05ct Round
$15,127 USD