CaratHunter
Plans
Radiant|Lab Grown|IGI

1.31ct E SI1 Radiant Lab Grown Diamond

GD • E/SI1 • IGI LG602355231

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG602355231

Diamond specifications and retailer prices

From €141 EUR
$158 USD
As of October 27, 2026
Save €1,219 EUR (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,361 EUR at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.31ct lab-grown radiant diamond

This 1.31ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG602355231 or 602355231. Listed at 10 retailers as of October 27, 2026, with prices from €141 to €1,361, a €1,219 spread on the same certified stone. Do Amore Diamonds lists it at €1,361. 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

1.31
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602355231
Dimensions7.82 × 5.30 × 3.59 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.82 mm5.30 mm1.31 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602355231
Side View
Table 66.0%Crown 42.3°Girdle: MediumPavilion 34°Culet: NoneDepth 67.7%

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 27
Current: €1,361 EUR|Low: €115 EUR|High: €1,477 EUR|Avg: €619 EUR|+1.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 18, 2026
Retailer 7€141 EUR
Retailer 10€158 EUR
Retailer 8€318 EUR
Retailer 3€329 EUR
Retailer 11€437 EUR
Retailer 12€449 EUR
Retailer 5€490 EUR
Retailer 6€595 EUR
Retailer 4€621 EUR
Retailer 13€806 EUR
Retailer 2€909 EUR
Retailer 9€1,092 EUR
Do Amore Diamonds€1,361 EUR

14 data points across 13 retailers

10 retailers€141 EUR to €1,361 EUR

A
Cheapest Retailer
-
€141 EUR
$158 USD
A
Retailer 2
-
€158 EUR
$177 USD
View
Final sale: no returns
A
Retailer 3
-
€164 EUR
$183 USD
View
B
Retailer 4
-
€318 EUR
$355 USD
View
B
Retailer 5
-
€595 EUR
$665 USD
View
B
Retailer 6
-
€622 EUR
$695 USD
View
B
Retailer 7
-
€806 EUR
$900 USD
View
Retailer 8
-
€909 EUR
£800 GBP
View
Price last confirmed 9 days ago
C
Retailer 9
-
€1,092 EUR
$1,220 USD
View
Most Expensive
C
Do Amore Diamonds
27-89282A6CB · Oct 29
€1,361 EUR
$1,520 USD
View
9 more retailers have this diamond
Prices start from €141 EURSave up to €1,219 EUR

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
1.31ct Radiant
€141 EUR