CaratHunter
Plans
Cushion|Lab Grown|IGI

1.01ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG677514326

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG677514326

Diamond specifications and retailer prices

From $158 USD
As of October 30, 2026
Save $681 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $839 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG677514326 or 677514326. Listed at 10 retailers as of October 29, 2026, with prices from $158 to $839, a $681 spread on the same certified stone. MOH London lists it at $839. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677514326
Dimensions6.89 × 5.51 × 3.65 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.89 mm5.51 mm1.01 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677514326
Side View
Table 62.0%Crown 31.2°Girdle: MED-VTKPavilion 40.8°Culet: NoneDepth 66.2%

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: $839 USD|Low: $158 USD|High: $839 USD|Avg: $375 USD|+1.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$158 USD
Retailer 8$178 USD
Retailer 9$290 USD
Retailer 2$301 USD
Retailer 4$328 USD
Retailer 5$335 USD
Retailer 7$338 USD
Retailer 3$421 USD
Retailer 6$623 USD
MOH London$839 USD

42 data points across 10 retailers

10 retailers$158 USD to $839 USD

A
Cheapest Retailer
-
$158 USD
Final sale: no returns
A
Retailer 2
-
$178 USD
View
A
Retailer 3
-
$290 USD
View
A
Retailer 4
-
$301 USD
£237 GBP
View
A
Retailer 5
-
$328 USD
View
A
Retailer 6
-
$335 USD
£264 GBP
View
A
Retailer 7
-
$338 USD
€322 EUR
View
B+
Retailer 8
-
$421 USD
View
B+
Retailer 9
-
$623 USD
View
Most Expensive
B
MOH London
LG677514326 · Oct 29
$839 USD
£661 GBP
View
9 more retailers have this diamond
Prices start from $158 USDSave up to $681 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.

A
1.01ct Cushion
$158 USD