CaratHunter
Plans
Cushion|Natural|GIA

1.00ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6555301762

Certificate GIA 6555301762

Diamond specifications and retailer prices

From $900 USD
As of November 6, 2026
Save $314 USD (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,214 USD 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 $900 to $1,214, a $314 spread on the same certified stone. GemTrove lists it at $1,214. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,214 USD|Low: $809 USD|High: $1,229 USD|Avg: $1,030 USD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$900 USD
Retailer 6$906 USD
Retailer 3$958 USD
Retailer 2$1,017 USD
Retailer 5$1,023 USD
Retailer 4$1,112 USD
GemTrove$1,214 USD

41 data points across 7 retailers

7 retailers$900 USD to $1,214 USD

A
Cheapest Retailer
-
$900 USD
A
Retailer 2
-
$906 USD
View
Final sale: no returns
A
Retailer 3
-
$958 USD
View
A
Retailer 4
-
$1,017 USD
View
A
Retailer 5
-
$1,023 USD
View
A
Retailer 6
-
$1,112 USD
View
Most Expensive
B+
GemTrove
GT-N-00979305-98 · Nov 6
$1,214 USD
A$1,868 AUD
View
6 more retailers have this diamond
Prices start from $900 USDSave up to $314 USD

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
$900 USD