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Cushion|Natural|GIA

1.51ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 1545346290

Certificate GIA 1545346290

Diamond specifications and retailer prices

From $5,330 CAD
HK$29,800 HKD
As of November 1, 2026
Save $7,048 CAD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,379 CAD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1545346290. Listed at 18 retailers as of October 28, 2026, with prices from $5,330 to $12,379, a $7,048 spread on the same certified stone. Queensmith lists it at $12,379. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545346290
Dimensions7.47 × 5.88 × 4.12 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.47 mm5.88 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545346290
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $12,379 CAD|Low: $5,277 CAD|High: $12,467 CAD|Avg: $7,698 CAD|+2.1%
Queensmith
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
Retailer 15
November 2, 2026
Retailer 12$5,330 CAD
Retailer 2$5,728 CAD
Retailer 14$6,221 CAD
Retailer 6$6,284 CAD
Retailer 3$6,497 CAD
Retailer 15$6,776 CAD
Retailer 9$6,999 CAD
Retailer 13$7,039 CAD
Retailer 4$7,113 CAD
Retailer 7$7,151 CAD
Retailer 5$7,251 CAD
Retailer 8$7,964 CAD
Retailer 11$8,652 CAD
Retailer 10$11,211 CAD
Queensmith$12,379 CAD

28 data points across 15 retailers

18 retailers$5,330 CAD to $12,379 CAD

A
Cheapest Retailer
-
$5,330 CAD
HK$29,800 HKD
A
Retailer 2
-
$5,728 CAD
₹390,355 INR
View
A
Retailer 3
-
$6,221 CAD
$4,452 USD
View
A
Retailer 4
-
$6,284 CAD
SGD 6,077 SGD
View
A
Retailer 5
-
$6,497 CAD
$4,649 USD
View
Final sale: no returns
A
Retailer 6
-
$6,534 CAD
$4,676 USD
View
A
Retailer 7
-
$6,540 CAD
$4,680 USD
View
A
Retailer 8
-
$6,776 CAD
SGD 6,553 SGD
View
A
Retailer 9
-
$6,999 CAD
£3,944 GBP
View
A
Retailer 10
-
$7,039 CAD
$5,037 USD
View
B+
Retailer 11
-
$7,113 CAD
$5,090 USD
View
Retailer 12
-
$7,151 CAD
A$7,873 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
$7,237 CAD
A$7,968 AUD
View
B+
Retailer 14
-
$7,251 CAD
$5,189 USD
View
B+
Retailer 15
-
$7,964 CAD
€5,428 EUR
View
B+
Retailer 16
-
$8,652 CAD
ZAR 100,023 ZAR
View
B
Retailer 17
-
$11,211 CAD
£6,317 GBP
View
Most Expensive
B
Queensmith
1545346290 · Oct 28
$12,379 CAD
£6,975 GBP
View
17 more retailers have this diamond
Prices start from $5,330 CADSave up to $7,048 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
1.51ct Cushion
$5,330 CAD