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Cushion|Natural|GIA

0.51ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 1549165866

Certificate GIA 1549165866

Diamond specifications and retailer prices

From $394 CAD
₹26,880 INR
As of October 31, 2026
Save $860 CAD (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,254 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1549165866. Listed at 8 retailers as of October 29, 2026, with prices from $394 to $1,254, a $860 spread on the same certified stone. MOH London lists it at $1,254. 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

0.51
Carat
I
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1549165866
Dimensions4.63 × 4.51 × 3.00 mm
L/W Ratio1.03
Girdle conditionFaceted
Key to symbols
Feather, Crystal
Top View
4.63 mm4.51 mm0.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1549165866
Side View
Table 58.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 66.6%

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: Oct 31
Current: $1,254 CAD|Low: $393 CAD|High: $1,263 CAD|Avg: $829 CAD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3$394 CAD
Retailer 2$705 CAD
Retailer 5$834 CAD
Retailer 6$838 CAD
Retailer 7$866 CAD
Retailer 4$984 CAD
MOH London$1,254 CAD

36 data points across 7 retailers

8 retailers$394 CAD to $1,254 CAD

A
Cheapest Retailer
-
$394 CAD
₹26,880 INR
B+
Retailer 2
-
$594 CAD
$425 USD
View
B+
Retailer 3
-
$705 CAD
£397 GBP
View
B+
Retailer 4
-
$834 CAD
ZAR 9,644 ZAR
View
B
Retailer 5
-
$838 CAD
$600 USD
View
Retailer 6
-
$866 CAD
A$953 AUD
View
Price last confirmed 29 days ago
B
Retailer 7
-
$984 CAD
€671 EUR
View
Most Expensive
B
MOH London
BED87C1C3 · Oct 29
$1,254 CAD
£707 GBP
View
7 more retailers have this diamond
Prices start from $394 CADSave up to $860 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
0.51ct Cushion
$394 CAD