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Cushion|Natural|GIA

1.05ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1568010215

Certificate GIA 1568010215

Diamond specifications and retailer prices

From $1,517 AUD
As of November 5, 2026
Save $336 AUD (18%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,852 AUD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.05ct natural cushion diamond

This 1.05ct 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 1568010215. Listed at 5 retailers as of November 5, 2026, with prices from $1,517 to $1,852, a $336 spread on the same certified stone. GemTrove lists it at $1,852. 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

1.05
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568010215
Dimensions5.67 × 5.63 × 3.81 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Natural
Top View
5.67 mm5.63 mm1.05 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1568010215
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.7%

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 5
Current: $1,852 AUD|Low: $1,517 AUD|High: $1,888 AUD|Avg: $1,697 AUD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3$1,517 AUD
Retailer 2$1,597 AUD
Retailer 5$1,649 AUD
Retailer 4$1,784 AUD
GemTrove$1,852 AUD

41 data points across 5 retailers

5 retailers$1,517 AUD to $1,852 AUD

A
Cheapest Retailer
-
$1,517 AUD
A
Retailer 2
-
$1,597 AUD
View
A
Retailer 3
-
$1,649 AUD
View
A
Retailer 4
-
$1,784 AUD
View
Most Expensive
B+
GemTrove
GT-N-01245895-98 · Nov 6
$1,852 AUD
View
4 more retailers have this diamond
Prices start from $1,517 AUDSave up to $336 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
1.05ct Cushion
$1,517 AUD