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Marquise|Natural|GIA

1.18ct D IF Marquise Natural Diamond

EX • D/IF • GIA 6551477395

Certificate GIA 6551477395

Diamond specifications and retailer prices

From $10,608 AUD
As of November 5, 2026
Save $3,593 AUD (25%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $14,201 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.18ct natural marquise diamond

This 1.18ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551477395. Listed at 8 retailers as of November 5, 2026, with prices from $10,608 to $14,201, a $3,593 spread on the same certified stone. Blue Nile lists it at $14,201. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
D
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551477395
Dimensions10.60 × 5.44 × 3.46 mm
L/W Ratio1.95
Culet sizeNone
Top View
10.60 mm5.44 mm1.18 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551477395
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.6%

Caratlytics Score

How it works →
A+
Exceptional
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 5
Current: $14,201 AUD|Low: $10,608 AUD|High: $14,551 AUD|Avg: $12,596 AUD|-2.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 3$10,608 AUD
Retailer 5$11,302 AUD
Retailer 6$12,215 AUD
Retailer 2$12,265 AUD
Retailer 8$12,648 AUD
Retailer 7$12,981 AUD
Retailer 4$13,036 AUD
Blue Nile$14,201 AUD

32 data points across 8 retailers

8 retailers$10,608 AUD to $14,201 AUD

A+
Cheapest Retailer
-
$10,608 AUD
A
Retailer 2
-
$11,302 AUD
View
A
Retailer 3
-
$12,215 AUD
View
A
Retailer 4
-
$12,265 AUD
View
A
Retailer 5
-
$12,648 AUD
View
Final sale: no returns
A
Retailer 6
-
$12,981 AUD
View
A
Retailer 7
-
$13,036 AUD
View
Most Expensive
B+
Blue Nile
29393445 · Nov 5
$14,201 AUD
$9,941 USD
View
7 more retailers have this diamond
Prices start from $10,608 AUDSave up to $3,593 AUD

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+
1.18ct Marquise
$10,608 AUD