Cushion|Natural|GIA

1.00ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 3345443697

Certificate GIA 3345443697

Diamond specifications and retailer prices

From $1,897 USD
As of November 6, 2026
Save $2,220 USD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,117 USD 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 $1,897 to $4,117, a $2,220 spread on the same certified stone. MOH London lists it at $4,117. 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 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,117 USD|Low: $1,890 USD|High: $4,167 USD|Avg: $2,547 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$1,890 USD
Retailer 8$1,897 USD
Retailer 6$2,129 USD
Retailer 9$2,150 USD
Retailer 7$2,333 USD
Retailer 3$2,554 USD
Retailer 4$2,868 USD
Retailer 2$2,919 USD
MOH London$4,117 USD

45 data points across 9 retailers

14 retailers$1,897 USD to $4,117 USD

Retailer 1
-
$1,890 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
$1,897 USD
View
B+
Retailer 3
-
$1,914 USD
View
B+
Retailer 4
-
$1,923 USD
View
B+
Retailer 5
-
$2,004 USD
View
B+
Retailer 6
-
$2,054 USD
View
Retailer 7
-
$2,129 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$2,150 USD
View
B
Retailer 9
-
$2,304 USD
View
B
Retailer 10
-
$2,333 USD
View
B
Retailer 11
-
$2,554 USD
View
B
Retailer 12
-
$2,868 USD
View
B
Retailer 13
-
$2,919 USD
View
Most Expensive
B
MOH London
55F84CC4A · Nov 2
$4,117 USD
£3,242 GBP
View
13 more retailers have this diamond
Prices start from $1,897 USDSave up to $2,220 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.

B+
1.00ct Cushion
$1,897 USD