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Cushion|Natural|GIA

1.05ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6542230145

Certificate GIA 6542230145

Diamond specifications and retailer prices

From $1,544 NZD
As of November 6, 2026
Save $646 NZD (30%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,190 NZD 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 6542230145. Listed at 7 retailers as of November 6, 2026, with prices from $1,544 to $2,190, a $646 spread on the same certified stone. GemTrove lists it at $2,190. 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
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542230145
Dimensions5.73 × 5.66 × 3.80 mm
L/W Ratio1.01
Top View
5.73 mm5.66 mm1.05 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542230145
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.2%

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: $2,190 NZD|Low: $1,425 NZD|High: $2,212 NZD|Avg: $1,812 NZD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$1,544 NZD
Retailer 4$1,555 NZD
Retailer 3$1,699 NZD
Retailer 2$1,746 NZD
Retailer 6$1,761 NZD
Retailer 5$1,912 NZD
GemTrove$2,190 NZD

41 data points across 7 retailers

7 retailers$1,544 NZD to $2,190 NZD

A
Cheapest Retailer
-
$1,544 NZD
A
Retailer 2
-
$1,555 NZD
View
Final sale: no returns
A
Retailer 3
-
$1,699 NZD
View
A
Retailer 4
-
$1,746 NZD
View
A
Retailer 5
-
$1,761 NZD
View
A
Retailer 6
-
$1,912 NZD
View
Most Expensive
B+
GemTrove
GT-N-00959194-98 · Nov 6
$2,190 NZD
A$1,868 AUD
View
6 more retailers have this diamond
Prices start from $1,544 NZDSave up to $646 NZD

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
$1,544 NZD