Cushion|Natural|IGI

1.51ct H I1 Cushion Natural Diamond

VG • H/I1 • IGI 808620023

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

Certificate IGI 808620023

Diamond specifications and retailer prices

From $1,649 USD
As of November 1, 2026
Save $247 USD (13%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,896 USD at DreamStone · As of October 31, 2026
View at DreamStone

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 808620023. Listed at 3 retailers as of October 31, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
H
Color
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.2°
Pavilion angle33.2°
OriginNatural
Grading LabIGI
CertificateIGI 808620023
Dimensions6.42 × 6.18 × 4.28 mm
L/W Ratio1.04
Girdle conditionFaceted
Top View
6.42 mm6.18 mm1.51 ctH / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 808620023
Side View
Table 62.0%Crown 34.2°Girdle: STK-THKPavilion 33.2°CuletDepth 69.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $1,896 USD|Low: $1,649 USD|High: $1,896 USD|Avg: $1,780 USD
DreamStone
Retailer 2
Retailer 3
October 12, 2026
Retailer 3$1,649 USD
Retailer 2$1,809 USD
DreamStone$1,896 USD

2 data points across 3 retailers

3 retailers$1,649 USD to $1,896 USD

B+
Cheapest Retailer
-
$1,649 USD
B+
Retailer 2
-
$1,809 USD
View
Most Expensive
B+
DreamStone
6ac948c7574cc217a2399a32 · Oct 31
$1,896 USD
View
2 more retailers have this diamond
Prices start from $1,649 USDSave up to $247 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+
1.51ct Cushion
$1,649 USD