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Cushion|Natural|GIA

1.00ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6315745344

Certificate GIA 6315745344

Diamond specifications and retailer prices

From $1,786 NZD
As of November 4, 2026
Save $2,134 NZD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,920 NZD at MOH London · As of November 4, 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 6315745344. Listed at 15 retailers as of November 4, 2026, with prices from $1,786 to $3,920, a $2,134 spread on the same certified stone. MOH London lists it at $3,920. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6315745344
Dimensions5.79 × 5.48 × 3.74 mm
L/W Ratio1.06
Top View
5.79 mm5.48 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6315745344
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.3%

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 4
Current: $3,920 NZD|Low: $1,786 NZD|High: $4,584 NZD|Avg: $2,552 NZD|-14.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 11$1,786 NZD
Retailer 7$1,808 NZD
Retailer 15$1,862 NZD
Retailer 5$1,930 NZD
Retailer 13$1,945 NZD
Retailer 2$2,082 NZD
Retailer 4$2,177 NZD
Retailer 12$2,192 NZD
Retailer 14$2,194 NZD
Retailer 9$2,410 NZD
Retailer 10$2,619 NZD
Retailer 6$2,940 NZD
Retailer 8$2,984 NZD
Retailer 3$3,047 NZD
MOH London$3,920 NZD

33 data points across 15 retailers

15 retailers$1,786 NZD to $3,920 NZD

A
Cheapest Retailer
-
$1,786 NZD
A
Retailer 2
-
$1,808 NZD
View
A
Retailer 3
-
$1,862 NZD
View
A
Retailer 4
-
$1,930 NZD
View
Retailer 5
-
$1,945 NZD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$2,082 NZD
View
B+
Retailer 7
-
$2,177 NZD
View
B+
Retailer 8
-
$2,192 NZD
View
B+
Retailer 9
-
$2,194 NZD
View
A
Retailer 10
-
$2,410 NZD
View
B+
Retailer 11
-
$2,619 NZD
View
B+
Retailer 12
-
$2,940 NZD
View
B+
Retailer 13
-
$2,984 NZD
View
B+
Retailer 14
-
$3,047 NZD
View
Most Expensive
B
MOH London
9B2A01CB9 · Nov 4
$3,920 NZD
£1,711 GBP
View
14 more retailers have this diamond
Prices start from $1,786 NZDSave up to $2,134 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
1.00ct Cushion
$1,786 NZD