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Round|Natural|GIA

1.09ct F I1 Round Natural Diamond

GD • F/I1 • GIA 2165905387

Certificate GIA 2165905387

Diamond specifications and retailer prices

From $4,677 SGD
$3,657 USD
As of November 2, 2026
Save $1,868 SGD (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,545 SGD 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 $4,677 to $6,545, a $1,868 spread on the same certified stone. Yorxs lists it at $6,545. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $4,677 SGD|Low: $4,616 SGD|High: $6,592 SGD|Avg: $6,043 SGD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Yorxs
November 1, 2026
Retailer 1$4,677 SGD
Retailer 2$6,072 SGD
Retailer 3$6,267 SGD
Retailer 4$6,267 SGD
Retailer 5$6,484 SGD
Yorxs$6,545 SGD

23 data points across 6 retailers

6 retailers$4,677 SGD to $6,545 SGD

B
Cheapest Retailer
-
$4,677 SGD
$3,657 USD
C
Retailer 2
-
$6,072 SGD
$4,748 USD
View
C
Retailer 3
-
$6,267 SGD
$4,900 USD
View
C
Retailer 4
-
$6,267 SGD
$4,900 USD
View
C
Retailer 5
-
$6,484 SGD
$5,070 USD
View
Most Expensive
C
Yorxs
230051757 · Nov 1
$6,545 SGD
€4,874 EUR
View
5 more retailers have this diamond
Prices start from $4,677 SGDSave up to $1,868 SGD

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
$4,677 SGD