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Round|Natural|GIA

1.25ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6541403286

Certificate GIA 6541403286

Diamond specifications and retailer prices

From $4,973 AUD
As of November 6, 2026
Save $5,707 AUD (53%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,680 AUD at MOH London · As of November 4, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6541403286. Listed at 11 retailers as of November 4, 2026, with prices from $4,973 to $10,680, a $5,707 spread on the same certified stone. MOH London lists it at $10,680. 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6541403286
Dimensions6.92 × 6.95 × 4.27 mm
L/W Ratio1.00
Top View
6.92 mm6.95 mm1.25 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541403286
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.6%

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 6
Current: $10,680 AUD|Low: $4,937 AUD|High: $11,648 AUD|Avg: $6,942 AUD|-7.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 5$4,973 AUD
Retailer 9$5,162 AUD
Retailer 7$5,209 AUD
Retailer 8$6,463 AUD
Retailer 2$6,577 AUD
Retailer 6$6,855 AUD
Retailer 11$6,855 AUD
Retailer 4$6,958 AUD
Retailer 3$7,088 AUD
Retailer 10$7,602 AUD
MOH London$10,680 AUD

40 data points across 11 retailers

11 retailers$4,973 AUD to $10,680 AUD

A
Cheapest Retailer
-
$4,973 AUD
A
Retailer 2
-
$5,162 AUD
View
A
Retailer 3
-
$5,209 AUD
View
Final sale: no returns
B+
Retailer 4
-
$6,463 AUD
View
B+
Retailer 5
-
$6,577 AUD
View
B+
Retailer 6
-
$6,855 AUD
View
B+
Retailer 7
-
$6,855 AUD
View
B+
Retailer 8
-
$6,958 AUD
View
B+
Retailer 9
-
$7,088 AUD
View
Retailer 10
-
$7,602 AUD
View
Price last confirmed 15 days ago
Most Expensive
B
MOH London
1DB12624A · Nov 4
$10,680 AUD
£5,778 GBP
View
10 more retailers have this diamond
Prices start from $4,973 AUDSave up to $5,707 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
$4,973 AUD