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Round|Natural|GIA

1.23ct I VVS1 Round Natural Diamond

EX • I/VVS1 • GIA 1558290625

Certificate GIA 1558290625

Diamond specifications and retailer prices

From $8,438 AUD
As of November 7, 2026
Save $1,287 AUD (13%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $13,286 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by GIA 1558290625. Listed at 5 retailers as of November 5, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
I
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1558290625
Dimensions7.02 × 7.07 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
7.02 mm7.07 mm1.23 ctI / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558290625
Side View
Table 55.0%Crown 32°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 59.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $13,286 AUD|Low: $8,414 AUD|High: $13,375 AUD|Avg: $10,130 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 2$8,438 AUD
Retailer 4$8,913 AUD
Retailer 3$9,725 AUD
MOH London$13,286 AUD

43 data points across 4 retailers

5 retailers$8,438 AUD to $9,725 AUD

B+
Cheapest Retailer
-
$8,438 AUD
Retailer 2
-
$8,913 AUD
View
Price last confirmed 34 days ago
B+
Retailer 3
-
$9,192 AUD
View
B+
Retailer 4
-
$9,725 AUD
View
Most Expensive
MOH London
65EE35CD3 · Oct 29
$13,286 AUD
£7,188 GBP
View
Price last confirmed 8 days ago
4 more retailers have this diamond
Prices start from $8,438 AUDSave up to $1,287 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+
1.23ct Round
$8,438 AUD