Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 1549682009

Certificate GIA 1549682009

Diamond specifications and retailer prices

From $447 USD
As of November 6, 2026
Save $1,370 USD (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,817 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1549682009. Listed at 20 retailers as of November 5, 2026, with prices from $447 to $1,817, a $1,370 spread on the same certified stone. NZ Jewellers lists it at $1,817. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1549682009
Dimensions7.82 × 4.20 × 2.67 mm
L/W Ratio1.86
Girdle conditionFaceted
Key to symbols
Feather, Twinning Wisp
Top View
7.82 mm4.20 mm0.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 1549682009
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 63.7%

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: Nov 6
Current: $1,817 USD|Low: $447 USD|High: $1,817 USD|Avg: $767 USD
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 2$447 USD
Retailer 10$486 USD
Retailer 7$534 USD
Retailer 11$553 USD
Retailer 19$579 USD
Retailer 13$603 USD
Retailer 3$624 USD
Retailer 9$624 USD
Retailer 18$668 USD
Retailer 14$703 USD
Retailer 12$707 USD
Retailer 5$710 USD
Retailer 6$720 USD
Retailer 4$775 USD
Retailer 8$824 USD
Retailer 16$854 USD
Retailer 17$894 USD
Retailer 15$1,336 USD
NZ Jewellers$1,817 USD

25 data points across 19 retailers

20 retailers$447 USD to $1,817 USD

A
Cheapest Retailer
-
$447 USD
B+
Retailer 2
-
$486 USD
View
B+
Retailer 3
-
$534 USD
View
Final sale: no returns
B+
Retailer 4
-
$553 USD
View
B+
Retailer 5
-
$579 USD
View
B+
Retailer 6
-
$603 USD
View
B+
Retailer 7
-
$624 USD
View
Retailer 8
-
$624 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$668 USD
View
B+
Retailer 10
-
$703 USD
View
B+
Retailer 11
-
$707 USD
View
B
Retailer 12
-
$710 USD
View
B
Retailer 13
-
$720 USD
View
B
Retailer 14
-
$775 USD
View
B
Retailer 15
-
$824 USD
View
B
Retailer 16
-
$854 USD
View
Retailer 17
-
$886 USD
View
Price last confirmed 33 days ago
B
Retailer 18
-
$894 USD
View
C
Retailer 19
-
$1,336 USD
View
Most Expensive
C
NZ Jewellers
05c9ab7c-8dce-4b8e-9624-ce5d7109f7a1 · Nov 5
$1,817 USD
View
19 more retailers have this diamond
Prices start from $447 USDSave up to $1,370 USD

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
$447 USD