Round|Natural|GIA

3.09ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1487892279

Certificate GIA 1487892279

Diamond specifications and retailer prices

From €21,993 EUR
As of November 6, 2026
Save €6,788 EUR (24%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €28,781 EUR at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.09ct natural round diamond

This 3.09ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1487892279. Listed at 8 retailers as of November 6, 2026, with prices from €21,993 to €28,781, a €6,788 spread on the same certified stone. The Diamond Guys lists it at €28,781. 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

3.09
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1487892279
Dimensions9.34 × 9.26 × 5.77 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
9.34 mm9.26 mm3.09 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1487892279
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.3%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: €21,993 EUR|Low: €21,993 EUR|High: €28,778 EUR|Avg: €25,236 EUR|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 1€21,993 EUR
Retailer 3€23,958 EUR
Retailer 4€25,798 EUR
Retailer 2€28,623 EUR

44 data points across 4 retailers

8 retailers€21,993 EUR to €28,781 EUR

B+
Cheapest Retailer
-
€21,993 EUR
B+
Retailer 2
-
€22,730 EUR
View
B+
Retailer 3
-
€23,958 EUR
View
B
Retailer 4
-
€24,882 EUR
View
B
Retailer 5
-
€25,321 EUR
View
B
Retailer 6
-
€25,798 EUR
View
B
Retailer 7
-
€28,623 EUR
View
Most Expensive
B
The Diamond Guys
1917986942 · Nov 6
€28,781 EUR
$32,304 USD
View
7 more retailers have this diamond
Prices start from €21,993 EURSave up to €6,788 EUR

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+
3.09ct Round
€21,993 EUR