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Radiant|Natural|GIA

0.91ct F SI2 Radiant Natural Diamond

VG • F/SI2 • GIA 5191590556

Certificate GIA 5191590556

Diamond specifications and retailer prices

From $1,813 USD
As of November 2, 2026
Save $101 USD (5%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,914 USD at DreamStone · As of October 31, 2026
View at DreamStone

About this 0.91ct natural radiant diamond

This 0.91ct natural radiant sits in the just-under-one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5191590556. Listed at 2 retailers as of October 31, 2026, with a relatively tight 6% 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

0.91
Carat
F
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5191590556
Dimensions6.29 × 5.20 × 3.24 mm
L/W Ratio1.21
Top View
6.29 mm5.20 mm0.91 ctF / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 5191590556
Side View
Table 75.0%CrownGirdle: MED-STKPavilionCuletDepth 62.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $1,914 USD|Low: $1,790 USD|High: $2,372 USD|Avg: $1,989 USD|-13.3%
DreamStone
Retailer 2
September 23, 2026
Retailer 2$1,813 USD
DreamStone$1,914 USD

7 data points across 2 retailers

2 retailers$1,813 USD to $1,914 USD

B+
Cheapest Retailer
-
$1,813 USD
Most Expensive
B
DreamStone
366722 · Oct 31
$1,914 USD
View
1 more retailer has this diamond
Prices start from $1,813 USDSave up to $101 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+
0.91ct Radiant
$1,813 USD