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Round|Natural|GIA

1.25ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 1226850485

Certificate GIA 1226850485

Diamond specifications and retailer prices

From $2,698 AUD
As of November 6, 2026
Save $1,161 AUD (30%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,859 AUD at Yorxs · As of November 5, 2026
View at Yorxs

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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1226850485. Listed at 2 retailers as of November 5, 2026, with prices from $2,698 to $3,859, a $1,161 spread on the same certified stone. Yorxs lists it at $3,859. 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1226850485
Dimensions6.92 × 6.87 × 4.27 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.92 mm6.87 mm1.25 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1226850485
Side View
Table 58.0%Crown 34.5°Girdle: ThickPavilion 41.2°Culet: NoneDepth 62.0%

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 6
Current: $2,698 AUD|Low: $2,637 AUD|High: $4,156 AUD|Avg: $3,560 AUD|-7.7%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 5, 2026
Retailer 1$2,698 AUD
Retailer 2$3,446 AUD
Yorxs$3,859 AUD
Retailer 3$4,156 AUD

25 data points across 4 retailers

2 retailers$2,698 AUD to $3,859 AUD

B+
Cheapest Retailer
-
$2,698 AUD
Most Expensive
B
Yorxs
18213 · Nov 5
$3,859 AUD
€2,573 EUR
View
1 more retailer has this diamond
Prices start from $2,698 AUDSave up to $1,161 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+
1.25ct Round
$2,698 AUD