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Round|Natural|GIA

1.25ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2566796579

Certificate GIA 2566796579

Diamond specifications and retailer prices

From $6,360 AUD
As of November 5, 2026
Save $3,752 AUD (37%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $10,112 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566796579. Listed at 4 retailers as of November 2, 2026, with prices from $6,360 to $10,112, a $3,752 spread on the same certified stone. MOH London lists it at $10,112. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.25
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2566796579
Dimensions6.87 × 6.82 × 4.30 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.87 mm6.82 mm1.25 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566796579
Side View
Table 58.0%Crown 36.5°GirdlePavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $10,112 AUD|Low: $6,360 AUD|High: $10,112 AUD|Avg: $7,469 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$6,360 AUD
Retailer 2$6,391 AUD
Retailer 3$7,129 AUD
MOH London$10,112 AUD

6 data points across 4 retailers

4 retailers$6,360 AUD to $10,112 AUD

B+
Cheapest Retailer
-
$6,360 AUD
A
Retailer 2
-
$6,391 AUD
View
B+
Retailer 3
-
$7,129 AUD
View
Most Expensive
B
MOH London
DA092CBA6 · Nov 2
$10,112 AUD
£5,471 GBP
View
3 more retailers have this diamond
Prices start from $6,360 AUDSave up to $3,752 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.

A
1.25ct Round
$6,360 AUD