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Radiant|Natural|GIA

1.09ct F SI2 Radiant Natural Diamond

GD • F/SI2 • GIA 173

Certificate GIA 173

Diamond specifications and retailer prices

From $3,124 USD
As of October 31, 2026
Save $15 USD (0%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,139 USD at B2C Jewels · As of November 2, 2026
View at B2C Jewels

About this 1.09ct natural radiant diamond

This 1.09ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of October 31, 2026, with a relatively tight 0% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 173
Dimensions5.85 × 5.46 mm
L/W Ratio1.07
Top View
5.85 mm5.46 mm1.09 ctF / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 173
Side View
Table 73.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 77.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $3,139 USD|Low: $3,095 USD|High: $3,139 USD|Avg: $3,121 USD|+1.4%
B2C Jewels
Retailer 2
September 23, 2026
Retailer 2$3,124 USD
B2C Jewels$3,139 USD

3 data points across 2 retailers

2 retailers$3,124 USD to $3,139 USD

B
Cheapest Retailer
-
$3,124 USD
Most Expensive
B
B2C Jewels
6429825 · Nov 2
$3,139 USD
View
1 more retailer has this diamond
Prices start from $3,124 USDSave up to $15 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 Radiant
$3,124 USD