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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 1437394970

Certificate GIA 1437394970

Diamond specifications and retailer prices

From $580 CAD
$415 USD
As of October 31, 2026
Save $650 CAD (53%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,229 CAD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1437394970. Listed at 5 retailers as of October 31, 2026, with prices from $580 to $1,229, a $650 spread on the same certified stone. 77 Diamonds lists it at $1,229. 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

0.50
Carat
I
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1437394970
Dimensions7.45 × 4.19 × 2.60 mm
L/W Ratio1.78
Girdle conditionFaceted
Key to symbols
Feather, Twinning Wisp
Top View
7.45 mm4.19 mm0.50 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1437394970
Side View
Table 65.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 61.9%

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: $1,229 CAD|Low: $527 CAD|High: $1,259 CAD|Avg: $980 CAD|+1.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2$580 CAD
Retailer 3$862 CAD
77 Diamonds$1,229 CAD
Retailer 4$1,259 CAD

30 data points across 4 retailers

5 retailers$580 CAD to $1,229 CAD

A
Cheapest Retailer
-
$580 CAD
$415 USD
Final sale: no returns
B+
Retailer 2
-
$789 CAD
$565 USD
View
B+
Retailer 3
-
$862 CAD
$617 USD
View
B
Retailer 4
-
$995 CAD
$713 USD
View
Most Expensive
B
77 Diamonds
MQMBMNHYFSDE · Nov 2
$1,229 CAD
£693 GBP
View
4 more retailers have this diamond
Prices start from $580 CADSave up to $650 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 Marquise
$580 CAD