CaratHunter
Plans
Cushion|Natural|IGI

1.00ct K SI1 Cushion Natural Diamond

GD • K/SI1 • IGI 270773253

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 270773253

Diamond specifications and retailer prices

From $1,027 USD
As of November 5, 2026
Save $1,136 USD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,163 USD 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 standard cut grade and certified by IGI 270773253. Listed at 10 retailers as of November 4, 2026, with prices from $1,027 to $2,163, a $1,136 spread on the same certified stone. MOH London lists it at $2,163. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
K
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 270773253
Dimensions5.91 × 5.78 × 4.01 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
5.91 mm5.78 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI 270773253
Side View
Table 64.5%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 69.4%

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 5
Current: $2,163 USD|Low: $1,027 USD|High: $2,195 USD|Avg: $1,353 USD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$1,027 USD
Retailer 10$1,030 USD
Retailer 5$1,035 USD
Retailer 6$1,072 USD
Retailer 7$1,190 USD
Retailer 3$1,351 USD
Retailer 4$1,444 USD
Retailer 2$1,492 USD
Retailer 9$1,636 USD
MOH London$2,163 USD

43 data points across 10 retailers

10 retailers$1,027 USD to $2,163 USD

B+
Cheapest Retailer
-
$1,027 USD
B+
Retailer 2
-
$1,030 USD
View
B+
Retailer 3
-
$1,035 USD
View
Retailer 4
-
$1,072 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,190 USD
View
B+
Retailer 6
-
$1,351 USD
View
B+
Retailer 7
-
$1,444 USD
View
B
Retailer 8
-
$1,492 USD
View
B
Retailer 9
-
$1,636 USD
View
Most Expensive
B
MOH London
FADB9622D · Nov 4
$2,163 USD
£1,703 GBP
View
9 more retailers have this diamond
Prices start from $1,027 USDSave up to $1,136 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
$1,027 USD