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Cushion|Natural|GIA

1.00ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6555301762

Certificate GIA 6555301762

Diamond specifications and retailer prices

From $1,310 AUD
As of November 6, 2026
Save $457 AUD (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,767 AUD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1ct natural cushion diamond

This 1ct 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 6555301762. Listed at 7 retailers as of November 6, 2026, with prices from $1,310 to $1,767, a $457 spread on the same certified stone. GemTrove lists it at $1,767. 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

1.00
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555301762
Dimensions5.61 × 5.54 × 3.73 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud
Top View
5.61 mm5.54 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555301762
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,767 AUD|Low: $1,177 AUD|High: $1,789 AUD|Avg: $1,499 AUD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$1,310 AUD
Retailer 6$1,319 AUD
Retailer 3$1,394 AUD
Retailer 2$1,480 AUD
Retailer 5$1,489 AUD
Retailer 4$1,618 AUD
GemTrove$1,767 AUD

41 data points across 7 retailers

7 retailers$1,310 AUD to $1,767 AUD

A
Cheapest Retailer
-
$1,310 AUD
A
Retailer 2
-
$1,319 AUD
View
Final sale: no returns
A
Retailer 3
-
$1,394 AUD
View
A
Retailer 4
-
$1,480 AUD
View
A
Retailer 5
-
$1,489 AUD
View
A
Retailer 6
-
$1,618 AUD
View
Most Expensive
B+
GemTrove
GT-N-00979305-98 · Nov 6
$1,767 AUD
View
6 more retailers have this diamond
Prices start from $1,310 AUDSave up to $457 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
1.00ct Cushion
$1,310 AUD