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Cushion|Natural|GIA

0.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6555666199

Certificate GIA 6555666199

Diamond specifications and retailer prices

From $542 CAD
$388 USD
As of October 29, 2026
Save $1,818 CAD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,360 CAD at Queensmith · As of October 28, 2026
View at Queensmith

About this 0.5ct natural cushion diamond

This 0.5ct natural cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555666199. Listed at 13 retailers as of October 28, 2026, with prices from $542 to $2,360, a $1,818 spread on the same certified stone. Queensmith lists it at $2,360. 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

0.50
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555666199
Dimensions4.67 × 4.70 × 3.16 mm
L/W Ratio1.01
Top View
4.67 mm4.70 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555666199
Side View
Table 62.0%CrownGirdlePavilionCulet: NoneDepth 67.7%

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 29
Current: $2,360 CAD|Low: $542 CAD|High: $2,537 CAD|Avg: $1,178 CAD|-4.0%
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
October 30, 2026
Retailer 10$542 CAD
Retailer 3$604 CAD
Retailer 8$728 CAD
Retailer 9$736 CAD
Retailer 12$761 CAD
Retailer 7$770 CAD
Retailer 2$849 CAD
Retailer 6$907 CAD
Retailer 11$917 CAD
Retailer 4$1,101 CAD
Retailer 5$1,244 CAD
Retailer 13$1,398 CAD
Queensmith$2,360 CAD

32 data points across 13 retailers

13 retailers$542 CAD to $2,360 CAD

A
Cheapest Retailer
-
$542 CAD
$388 USD
Final sale: no returns
A
Retailer 2
-
$604 CAD
SGD 584 SGD
View
A
Retailer 3
-
$728 CAD
£410 GBP
View
A
Retailer 4
-
$736 CAD
£415 GBP
View
A
Retailer 5
-
$761 CAD
$545 USD
View
A
Retailer 6
-
$770 CAD
$552 USD
View
B+
Retailer 7
-
$849 CAD
$608 USD
View
B+
Retailer 8
-
$907 CAD
ZAR 10,486 ZAR
View
B+
Retailer 9
-
$917 CAD
€625 EUR
View
Retailer 10
-
$1,101 CAD
$788 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$1,244 CAD
A$1,370 AUD
View
Price last confirmed 26 days ago
B
Retailer 12
-
$1,398 CAD
£788 GBP
View
Most Expensive
B
Queensmith
6555666199 · Oct 28
$2,360 CAD
£1,330 GBP
View
12 more retailers have this diamond
Prices start from $542 CADSave up to $1,818 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
0.50ct Cushion
$542 CAD