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Round|Natural|GIA

1.66ct D I1 Round Natural Diamond

VG • D/I1 • GIA 3425140471

Certificate GIA 3425140471

Diamond specifications and retailer prices

From $11,062 SGD
$8,650 USD
As of November 2, 2026
Save $384 SGD (3%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $11,446 SGD at Yorxs · As of November 1, 2026
View at Yorxs

About this 1.66ct natural round diamond

This 1.66ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 3425140471. Listed at 4 retailers as of November 1, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.66
Carat
D
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3425140471
Dimensions7.53 × 7.62 × 4.69 mm
L/W Ratio1.01
Top View
7.53 mm7.62 mm1.66 ctD / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3425140471
Side View
Table 59.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 62.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $11,062 SGD|Low: $11,062 SGD|High: $12,073 SGD|Avg: $11,490 SGD|-5.3%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 1, 2026
Retailer 1$11,062 SGD
Retailer 3$11,062 SGD
Retailer 2$11,433 SGD
Yorxs$11,446 SGD

26 data points across 4 retailers

4 retailers$11,062 SGD to $11,446 SGD

B
Cheapest Retailer
-
$11,062 SGD
$8,650 USD
B
Retailer 2
-
$11,062 SGD
$8,650 USD
View
B
Retailer 3
-
$11,433 SGD
$8,940 USD
View
Most Expensive
B
Yorxs
217974079 · Nov 1
$11,446 SGD
€8,524 EUR
View
3 more retailers have this diamond
Prices start from $11,062 SGDSave up to $384 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
$11,062 SGD