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Cushion|Natural|IGI

1.57ct H IF Cushion Natural Diamond

VG • H/IF • IGI 780633454

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI 780633454

Diamond specifications and retailer prices

From £3,504 GBP
As of November 6, 2026
Save £1,139 GBP (25%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £4,643 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.57ct natural cushion diamond

This 1.57ct natural cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 780633454. Listed at 2 retailers as of November 6, 2026, with prices from £3,504 to £4,643, a £1,139 spread on the same certified stone. 77 Diamonds lists it at £4,643. 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

1.57
Carat
H
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle35.1°
OriginNatural
Grading LabIGI
CertificateIGI 780633454
Dimensions6.54 × 6.42 × 4.33 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
6.54 mm6.42 mm1.57 ctH / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 780633454
Side View
Table 60.0%Crown 37.7°Girdle: MED-THKPavilion 35.1°Culet: NoneDepth 67.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £4,643 GBP|Low: £3,504 GBP|High: £5,122 GBP|Avg: £4,177 GBP|+6.6%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2£3,504 GBP
77 Diamonds£4,643 GBP

45 data points across 2 retailers

2 retailers£3,504 GBP to £4,643 GBP

A
Cheapest Retailer
-
£3,504 GBP
Most Expensive
B+
77 Diamonds
CUSCPMVP5QF2R · Nov 6
£4,643 GBP
View
1 more retailer has this diamond
Prices start from £3,504 GBPSave up to £1,139 GBP

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
1.57ct Cushion
£3,504 GBP