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Cushion|Lab Grown|IGI

1.55ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG825630871

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825630871

Diamond specifications and retailer prices

From $383 NZD
$215 USD
As of October 30, 2026
Save $1,696 NZD (82%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,079 NZD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG825630871 or 825630871. Listed at 8 retailers as of October 30, 2026, with prices from $383 to $2,079, a $1,696 spread on the same certified stone. Reve Diamonds lists it at $2,079. 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

1.55
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825630871
Dimensions7.51 × 5.99 × 4.14 mm
L/W Ratio1.25
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.51 mm5.99 mm1.55 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG825630871
Side View
Table 67.0%Crown 35.1°Girdle: STK-VTKPavilion 41.1°Culet: NoneDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $769 NZD|Low: $383 NZD|High: $2,079 NZD|Avg: $737 NZD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Reve Diamonds
October 30, 2026
Retailer 6$383 NZD
Retailer 4$570 NZD
Retailer 2$716 NZD
Retailer 1$769 NZD
Retailer 5$840 NZD
Retailer 3$1,457 NZD
Reve Diamonds$2,079 NZD

20 data points across 7 retailers

8 retailers$383 NZD to $2,079 NZD

A
Cheapest Retailer
-
$383 NZD
$215 USD
Final sale: no returns
B+
Retailer 2
-
$570 NZD
$320 USD
View
B+
Retailer 3
-
$716 NZD
€383 EUR
View
B+
Retailer 4
-
$769 NZD
£340 GBP
View
B+
Retailer 5
-
$840 NZD
$472 USD
View
B
Retailer 6
-
$1,457 NZD
$818 USD
View
B
Retailer 7
-
$1,959 NZD
$1,100 USD
View
Most Expensive
B
Reve Diamonds
69302FC56 · Oct 30
$2,079 NZD
$1,168 USD
View
7 more retailers have this diamond
Prices start from $383 NZDSave up to $1,696 NZD

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
1.55ct Cushion
$383 NZD