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Round|Natural|GIA

1.66ct L IF Round Natural Diamond

EX • L/IF • GIA 3

Certificate GIA 3

Diamond specifications and retailer prices

From $9,285 SGD
As of November 6, 2026
Save $2,394 SGD (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $11,679 SGD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.66ct natural round diamond

This 1.66ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA. Listed at 3 retailers as of November 5, 2026, with prices from $9,285 to $11,679, a $2,394 spread on the same certified stone. Blue Nile lists it at $11,679. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
L
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 3
Dimensions7.63 × 7.67 × 4.67 mm
L/W Ratio1.01
Top View
7.63 mm7.67 mm1.66 ctL / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 3
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $11,679 SGD|Low: $9,285 SGD|High: $11,679 SGD|Avg: $10,082 SGD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2$9,285 SGD
Retailer 3$10,080 SGD
Blue Nile$11,679 SGD

2 data points across 3 retailers

3 retailers$9,285 SGD to $11,679 SGD

B
Cheapest Retailer
-
$9,285 SGD
B
Retailer 2
-
$10,080 SGD
View
Most Expensive
B
Blue Nile
11112580 · Nov 5
$11,679 SGD
$9,113 USD
View
2 more retailers have this diamond
Prices start from $9,285 SGDSave up to $2,394 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.

B
1.66ct Round
$9,285 SGD