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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 $9,479 SGD
As of November 6, 2026
Save $3,262 SGD (26%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $12,740 SGD 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 $9,479 to $12,740, a $3,262 spread on the same certified stone. Blue Nile lists it at $12,740. 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 6
Current: $12,740 SGD|Low: $9,479 SGD|High: $13,054 SGD|Avg: $11,296 SGD|-2.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 3$9,479 SGD
Retailer 5$10,140 SGD
Retailer 6$10,959 SGD
Retailer 2$11,004 SGD
Retailer 8$11,347 SGD
Retailer 7$11,646 SGD
Retailer 4$11,696 SGD
Blue Nile$12,740 SGD

32 data points across 8 retailers

8 retailers$9,479 SGD to $12,740 SGD

A+
Cheapest Retailer
-
$9,479 SGD
A
Retailer 2
-
$10,140 SGD
View
A
Retailer 3
-
$10,959 SGD
View
A
Retailer 4
-
$11,004 SGD
View
A
Retailer 5
-
$11,347 SGD
View
Final sale: no returns
A
Retailer 6
-
$11,646 SGD
View
A
Retailer 7
-
$11,696 SGD
View
Most Expensive
B+
Blue Nile
29393445 · Nov 5
$12,740 SGD
$9,941 USD
View
7 more retailers have this diamond
Prices start from $9,479 SGDSave up to $3,262 SGD

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
$9,479 SGD