Round|Natural|GIA

3.09ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 3555658105

Certificate GIA 3555658105

Diamond specifications and retailer prices

From $34,720 USD
As of November 2, 2026
Save $1,160 USD (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $35,880 USD at Jared · As of November 2, 2026
View at Jared

About this 3.09ct natural round diamond

This 3.09ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555658105. Listed at 3 retailers as of November 2, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 3555658105
Dimensions9.22 × 9.28 × 5.77 mm
L/W Ratio1.01
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
9.22 mm9.28 mm3.09 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555658105
Side View
Table 57.0%Crown 36.5°Girdle: MD-STKPavilion 40.8°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $35,880 USD|Low: $27,879 USD|High: $43,692 USD|Avg: $34,381 USD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 5, 2026
Retailer 3$27,879 USD
Retailer 10$29,273 USD
Retailer 9$30,202 USD
Retailer 5$31,086 USD
Retailer 8$32,525 USD
Retailer 2$34,720 USD
Retailer 11$35,781 USD
Jared$35,880 USD
Retailer 7$37,038 USD
Retailer 6$40,863 USD
Retailer 4$43,692 USD

2 data points across 11 retailers

3 retailers$34,720 USD to $35,880 USD

Retailer 1
-
$31,086 USD
Price last confirmed 50 days ago
B+
Retailer 2
-
$34,720 USD
View
Most Expensive
B
Jared
159807290 · Nov 2
$35,880 USD
View
2 more retailers have this diamond
Prices start from $34,720 USDSave up to $1,160 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+
3.09ct Round
$34,720 USD