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Cushion|Natural|IGI

1.51ct K VS1 Cushion Natural Diamond

VG • K/VS1 • IGI 717504390

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 717504390

Diamond specifications and retailer prices

From $3,618 AUD
As of November 5, 2026
Save $3,461 AUD (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,079 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 717504390. Listed at 11 retailers as of November 2, 2026, with prices from $3,618 to $7,079, a $3,461 spread on the same certified stone. MOH London lists it at $7,079. 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

1.51
Carat
K
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle30.1°
OriginNatural
Grading LabIGI
CertificateIGI 717504390
Dimensions6.39 × 5.96 × 4.17 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Top View
6.39 mm5.96 mm1.51 ctK / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 717504390
Side View
Table 61.0%Crown 39.7°Girdle: STK-VTKPavilion 30.1°Culet: NoneDepth 70.0%

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 5
Current: $7,079 AUD|Low: $3,618 AUD|High: $7,166 AUD|Avg: $4,411 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$3,618 AUD
Retailer 6$3,668 AUD
Retailer 2$3,787 AUD
Retailer 8$3,966 AUD
Retailer 7$4,042 AUD
Retailer 4$4,327 AUD
Retailer 3$4,704 AUD
Retailer 5$4,932 AUD
MOH London$7,079 AUD

37 data points across 9 retailers

11 retailers$3,618 AUD to $7,079 AUD

A
Cheapest Retailer
-
$3,618 AUD
A
Retailer 2
-
$3,668 AUD
View
A
Retailer 3
-
$3,787 AUD
View
A
Retailer 4
-
$3,854 AUD
View
B+
Retailer 5
-
$3,966 AUD
View
Retailer 6
-
$4,042 AUD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
$4,247 AUD
View
A
Retailer 8
-
$4,327 AUD
View
B+
Retailer 9
-
$4,704 AUD
View
B+
Retailer 10
-
$4,932 AUD
View
Most Expensive
B
MOH London
D89389D61 · Nov 2
$7,079 AUD
£3,830 GBP
View
10 more retailers have this diamond
Prices start from $3,618 AUDSave up to $3,461 AUD

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
1.51ct Cushion
$3,618 AUD