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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 $4,842 CAD
As of November 6, 2026
Save $2,298 CAD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,140 CAD 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 $4,842 to $7,140, a $2,298 spread on the same certified stone. 77 Diamonds lists it at $7,140. 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
Color
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: $7,140 CAD|Low: $4,842 CAD|High: $7,767 CAD|Avg: $6,057 CAD|-5.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4$4,842 CAD
Retailer 3$4,860 CAD
Retailer 5$4,938 CAD
Retailer 6$5,194 CAD
Retailer 2$6,711 CAD
77 Diamonds$7,140 CAD
Retailer 7$7,764 CAD

38 data points across 7 retailers

6 retailers$4,842 CAD to $7,140 CAD

A
Cheapest Retailer
-
$4,842 CAD
A
Retailer 2
-
$4,860 CAD
View
A
Retailer 3
-
$4,938 CAD
View
A
Retailer 4
-
$5,194 CAD
View
B+
Retailer 5
-
$6,711 CAD
View
Most Expensive
B+
77 Diamonds
RBMBPNADVEVC · Nov 5
$7,140 CAD
£4,026 GBP
View
5 more retailers have this diamond
Prices start from $4,842 CADSave up to $2,298 CAD

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
$4,842 CAD