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Radiant|Natural|GIA

0.91ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 15889065

Certificate GIA 15889065

Diamond specifications and retailer prices

From $3,428 AUD
€2,288 EUR
As of November 2, 2026
Save $3,143 AUD (48%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $6,571 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.91ct natural radiant diamond

This 0.91ct natural radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 15889065. Listed at 5 retailers as of November 1, 2026, with prices from $3,428 to $6,571, a $3,143 spread on the same certified stone. MOH London lists it at $6,571. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 15889065
Dimensions5.52 × 4.92 × 3.89 mm
L/W Ratio1.12
Key to symbols
Indented Natural, Crystal
Top View
5.52 mm4.92 mm0.91 ctI / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceMedium
CertificateGIA 15889065
Side View
Table 68.0%CrownGirdle: VTN-ETKPavilionCulet: NoneDepth 79.1%

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: Nov 2
Current: $6,571 AUD|Low: $3,855 AUD|High: $6,642 AUD|Avg: $4,771 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3$4,008 AUD
Retailer 4$4,202 AUD
Retailer 2$4,393 AUD
MOH London$6,571 AUD

40 data points across 4 retailers

5 retailers$3,428 AUD to $6,571 AUD

B
Cheapest Retailer
-
$3,428 AUD
€2,288 EUR
C
Retailer 2
-
$4,008 AUD
£2,212 GBP
View
Retailer 3
-
$4,202 AUD
View
Price last confirmed 25 days ago
C
Retailer 4
-
$4,393 AUD
€2,932 EUR
View
Most Expensive
C
MOH London
EFC2CA9DC · Nov 1
$6,571 AUD
£3,626 GBP
View
4 more retailers have this diamond
Prices start from $3,428 AUDSave up to $3,143 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
$3,428 AUD