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Round|Natural|GIA

1.25ct K IF Round Natural Diamond

EX • K/IF • GIA 2506628818

Certificate GIA 2506628818

Diamond specifications and retailer prices

From $5,046 AUD
As of November 6, 2026
Save $2,395 AUD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,441 AUD at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

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 K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2506628818. Listed at 6 retailers as of November 5, 2026, with prices from $5,046 to $7,441, a $2,395 spread on the same certified stone. 77 Diamonds lists it at $7,441. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2506628818
Dimensions6.90 × 6.85 × 4.25 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
6.90 mm6.85 mm1.25 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2506628818
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.8%

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: $7,441 AUD|Low: $5,046 AUD|High: $8,094 AUD|Avg: $6,312 AUD|-5.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4$5,046 AUD
Retailer 3$5,065 AUD
Retailer 5$5,146 AUD
Retailer 6$5,413 AUD
Retailer 2$6,993 AUD
77 Diamonds$7,441 AUD
Retailer 7$8,091 AUD

38 data points across 7 retailers

6 retailers$5,046 AUD to $7,441 AUD

A
Cheapest Retailer
-
$5,046 AUD
A
Retailer 2
-
$5,065 AUD
View
A
Retailer 3
-
$5,146 AUD
View
A
Retailer 4
-
$5,413 AUD
View
B+
Retailer 5
-
$6,993 AUD
View
Most Expensive
B+
77 Diamonds
RBMBPNADVEVC · Nov 5
$7,441 AUD
£4,026 GBP
View
5 more retailers have this diamond
Prices start from $5,046 AUDSave up to $2,395 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
$5,046 AUD