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Round|Natural|GIA

1.27ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2554428338

Certificate GIA 2554428338

Diamond specifications and retailer prices

From $6,945 CAD
$4,970 USD
As of November 1, 2026
Save $4,571 CAD (40%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,516 CAD at MOH London · As of November 2, 2026
View at MOH London

About this 1.27ct natural round diamond

This 1.27ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554428338. Listed at 9 retailers as of November 1, 2026, with prices from $6,945 to $11,516, a $4,571 spread on the same certified stone. MOH London lists it at $11,516. 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

1.27
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554428338
Dimensions6.90 × 6.96 × 4.34 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.90 mm6.96 mm1.27 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554428338
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 41.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $11,516 CAD|Low: $5,193 CAD|High: $12,004 CAD|Avg: $7,880 CAD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 12$5,606 CAD
Retailer 3$5,806 CAD
Retailer 14$6,847 CAD
Retailer 13$6,939 CAD
Retailer 11$6,945 CAD
Retailer 7$7,150 CAD
Retailer 4$7,177 CAD
Retailer 2$7,408 CAD
Retailer 9$7,622 CAD
Retailer 8$7,884 CAD
Retailer 6$8,281 CAD
Retailer 10$9,106 CAD
MOH London$11,516 CAD
Retailer 5$12,004 CAD

25 data points across 14 retailers

9 retailers$6,945 CAD to $11,516 CAD

Retailer 1
-
$6,939 CAD
A$7,639 AUD
Price last confirmed 29 days ago
B+
Retailer 2
-
$6,945 CAD
$4,970 USD
View
B+
Retailer 3
-
$7,150 CAD
£4,029 GBP
View
B+
Retailer 4
-
$7,408 CAD
$5,301 USD
View
B+
Retailer 5
-
$7,622 CAD
$5,454 USD
View
B+
Retailer 6
-
$7,884 CAD
€5,373 EUR
View
Retailer 7
-
$8,281 CAD
$5,926 USD
View
Price last confirmed 41 days ago
B
Retailer 8
-
$9,106 CAD
ZAR 105,271 ZAR
View
Most Expensive
B
MOH London
A5D378394 · Nov 2
$11,516 CAD
£6,489 GBP
View
8 more retailers have this diamond
Prices start from $6,945 CADSave up to $4,571 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.

B+
1.27ct Round
$6,945 CAD