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Cushion|Natural|GIA

1.00ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 3345443697

Certificate GIA 3345443697

Diamond specifications and retailer prices

From $3,422 NZD
As of November 6, 2026
Save $4,005 NZD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,427 NZD at MOH London · As of November 2, 2026
View at MOH London

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 3345443697. Listed at 14 retailers as of November 2, 2026, with prices from $3,422 to $7,427, a $4,005 spread on the same certified stone. MOH London lists it at $7,427. 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 3345443697
Dimensions5.79 × 5.74 × 3.92 mm
L/W Ratio1.01
Top View
5.79 mm5.74 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3345443697
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,427 NZD|Low: $3,409 NZD|High: $7,517 NZD|Avg: $4,595 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$3,409 NZD
Retailer 8$3,422 NZD
Retailer 6$3,841 NZD
Retailer 9$3,878 NZD
Retailer 7$4,208 NZD
Retailer 3$4,607 NZD
Retailer 4$5,174 NZD
Retailer 2$5,266 NZD
MOH London$7,427 NZD

45 data points across 9 retailers

14 retailers$3,422 NZD to $7,427 NZD

Retailer 1
-
$3,409 NZD
Price last confirmed 9 days ago
B+
Retailer 2
-
$3,422 NZD
View
B+
Retailer 3
-
$3,453 NZD
View
B+
Retailer 4
-
$3,469 NZD
View
B+
Retailer 5
-
$3,615 NZD
View
B+
Retailer 6
-
$3,705 NZD
View
Retailer 7
-
$3,841 NZD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$3,878 NZD
View
B
Retailer 9
-
$4,156 NZD
View
B
Retailer 10
-
$4,208 NZD
View
B
Retailer 11
-
$4,607 NZD
View
B
Retailer 12
-
$5,174 NZD
View
B
Retailer 13
-
$5,266 NZD
View
Most Expensive
B
MOH London
55F84CC4A · Nov 2
$7,427 NZD
£3,242 GBP
View
13 more retailers have this diamond
Prices start from $3,422 NZDSave up to $4,005 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.

B+
1.00ct Cushion
$3,422 NZD