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Radiant|Natural|GIA

0.91ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 1215215357

Certificate GIA 1215215357

Diamond specifications and retailer prices

From $4,462 AUD
$3,134 USD
As of October 28, 2026
Save $2,211 AUD (33%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,673 AUD at The Diamond Guys · As of October 29, 2026
View at The Diamond Guys

About this 0.91ct natural radiant diamond

This 0.91ct natural radiant sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1215215357. Listed at 11 retailers as of October 28, 2026, with prices from $4,462 to $6,673, a $2,211 spread on the same certified stone. The Diamond Guys lists it at $6,673. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1215215357
Dimensions6.45 × 4.86 × 3.40 mm
L/W Ratio1.33
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
6.45 mm4.86 mm0.91 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1215215357
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.9%

Caratlytics Score

How it works →
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: Oct 28
Current: $6,397 AUD|Low: $4,462 AUD|High: $6,673 AUD|Avg: $5,425 AUD|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
The Diamond Guys
October 29, 2026
Retailer 6$4,462 AUD
Retailer 5$4,471 AUD
Retailer 3$4,512 AUD
Retailer 8$4,573 AUD
Retailer 7$4,997 AUD
Retailer 4$5,614 AUD
Retailer 2$5,950 AUD
Retailer 9$5,950 AUD
Retailer 10$6,149 AUD
Retailer 1$6,397 AUD
The Diamond Guys$6,673 AUD

18 data points across 11 retailers

11 retailers$4,462 AUD to $6,673 AUD

B
Cheapest Retailer
-
$4,462 AUD
$3,134 USD
B
Retailer 2
-
$4,471 AUD
$3,141 USD
View
Retailer 3
-
$4,512 AUD
$3,170 USD
View
Price last confirmed 8 days ago
B
Retailer 4
-
$4,573 AUD
$3,213 USD
View
B
Retailer 5
-
$4,997 AUD
CA$4,876 CAD
View
B
Retailer 6
-
$5,614 AUD
$3,944 USD
View
B
Retailer 7
-
$5,950 AUD
$4,180 USD
View
B
Retailer 8
-
$5,950 AUD
$4,180 USD
View
B
Retailer 9
-
$6,149 AUD
$4,320 USD
View
B
Retailer 10
-
$6,397 AUD
€4,280 EUR
View
Most Expensive
B
The Diamond Guys
1947493459 · Oct 29
$6,673 AUD
$4,688 USD
View
10 more retailers have this diamond
Prices start from $4,462 AUDSave up to $2,211 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
$4,462 AUD