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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 $2,587 AUD
$1,813 USD
As of November 2, 2026
Save $145 AUD (5%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,732 AUD 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
Colour
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

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

Last verified: Nov 2
Current: $2,732 AUD|Low: $2,554 AUD|High: $3,385 AUD|Avg: $2,838 AUD|-13.3%
DreamStone
Retailer 2
September 23, 2026
Retailer 2$2,587 AUD
DreamStone$2,732 AUD

7 data points across 2 retailers

2 retailers$2,587 AUD to $2,732 AUD

B+
Cheapest Retailer
-
$2,587 AUD
$1,813 USD
Most Expensive
B
DreamStone
366722 · Oct 31
$2,732 AUD
$1,914 USD
View
1 more retailer has this diamond
Prices start from $2,587 AUDSave up to $145 AUD

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
$2,587 AUD