Round|Natural|GIA

1.09ct F I1 Round Natural Diamond

GD • F/I1 • GIA 2165905387

Certificate GIA 2165905387

Diamond specifications and retailer prices

From $3,657 USD
As of November 2, 2026
Save $1,461 USD (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,118 USD at Yorxs · As of November 1, 2026
View at Yorxs

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a standard cut grade and certified by GIA 2165905387. Listed at 6 retailers as of November 1, 2026, with prices from $3,657 to $5,118, a $1,461 spread on the same certified stone. Yorxs lists it at $5,118. 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

1.09
Carat
F
Color
I1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2165905387
Dimensions6.60 × 6.52 × 4.07 mm
L/W Ratio1.01
Star length55%
Lower girdle85%
Culet sizeNone
Top View
6.60 mm6.52 mm1.09 ctF / I1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2165905387
Side View
Table 62.0%Crown 37.5°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $3,657 USD|Low: $3,609 USD|High: $5,154 USD|Avg: $4,725 USD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Yorxs
November 1, 2026
Retailer 1$3,657 USD
Retailer 2$4,748 USD
Retailer 3$4,900 USD
Retailer 4$4,900 USD
Retailer 5$5,070 USD
Yorxs$5,118 USD

23 data points across 6 retailers

6 retailers$3,657 USD to $5,118 USD

B
Cheapest Retailer
-
$3,657 USD
C
Retailer 2
-
$4,748 USD
View
C
Retailer 3
-
$4,900 USD
View
C
Retailer 4
-
$4,900 USD
View
C
Retailer 5
-
$5,070 USD
View
Most Expensive
C
Yorxs
230051757 · Nov 1
$5,118 USD
€4,874 EUR
View
5 more retailers have this diamond
Prices start from $3,657 USDSave up to $1,461 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
1.09ct Round
$3,657 USD