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Cushion|Natural|GIA

1.06ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6452938597

Certificate GIA 6452938597

Diamond specifications and retailer prices

From $3,090 SGD
$2,411 USD
As of November 5, 2026
1 retailer carries this diamond
Only listing: $3,090 SGD at Blue Nile
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Blue Nile

About this 1.06ct natural cushion diamond

This 1.06ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6452938597. Listed at a single retailer as of November 5, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.06
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6452938597
Dimensions6.12 × 5.72 × 3.91 mm
L/W Ratio1.07
Top View
6.12 mm5.72 mm1.06 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452938597
Side View
Table 62.0%CrownGirdle: UNDPavilionCulet: NoneDepth 68.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $3,090 SGD|Low: $2,841 SGD|High: $3,090 SGD|Avg: $2,946 SGD
Blue Nile
Retailer 2
Retailer 3
October 17, 2026
Retailer 2$2,894 SGD
Retailer 3$3,078 SGD
Blue Nile$3,090 SGD

25 data points across 3 retailers

1 retailer

B
Blue Nile
20289971 · Nov 5
$3,090 SGD
$2,411 USD
View

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
1.06ct Cushion
$3,090 SGD