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Radiant|Lab Grown|IGI

1.80ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG523265480

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

Certificate IGI LG523265480

Diamond specifications and retailer prices

From €1,074 EUR
$1,200 USD
As of October 31, 2026
Save €4,031 EUR (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €5,105 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.8ct lab-grown radiant diamond

This 1.8ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523265480 or 523265480. Listed at 11 retailers as of October 29, 2026, with prices from €1,074 to €5,105, a €4,031 spread on the same certified stone. MOH London lists it at €5,105. 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

1.80
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523265480
Dimensions7.88 × 5.98 × 4.10 mm
L/W Ratio1.32
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
7.88 mm5.98 mm1.80 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523265480
Side View
Table 66.5%Crown 45.5°Girdle: STK-THKPavilionCulet: NoneDepth 68.6%

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 31
Current: €5,105 EUR|Low: €1,074 EUR|High: €5,146 EUR|Avg: €2,579 EUR|+0.5%
MOH London
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 29, 2026
Retailer 7€1,074 EUR
Retailer 6€1,532 EUR
Retailer 11€1,668 EUR
Retailer 12€1,716 EUR
Retailer 8€1,778 EUR
Retailer 5€1,816 EUR
Retailer 13€1,929 EUR
Retailer 3€2,380 EUR
Retailer 9€2,792 EUR
Retailer 2€3,066 EUR
Retailer 10€3,332 EUR
Retailer 4€5,090 EUR
MOH London€5,105 EUR

18 data points across 13 retailers

11 retailers€1,074 EUR to €5,105 EUR

A
Cheapest Retailer
-
€1,074 EUR
$1,200 USD
A
Retailer 2
-
€1,532 EUR
$1,712 USD
View
B+
Retailer 3
-
€1,668 EUR
$1,863 USD
View
B+
Retailer 4
-
€1,716 EUR
$1,917 USD
View
Final sale: no returns
Retailer 5
-
€1,778 EUR
$1,986 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,778 EUR
$1,986 USD
View
B+
Retailer 7
-
€1,929 EUR
$2,155 USD
View
B
Retailer 8
-
€2,792 EUR
$3,119 USD
View
B
Retailer 9
-
€3,066 EUR
$3,425 USD
View
B
Retailer 10
-
€3,332 EUR
$3,723 USD
View
Most Expensive
B
MOH London
LG523265480 · Oct 29
€5,105 EUR
£4,491 GBP
View
10 more retailers have this diamond
Prices start from €1,074 EURSave up to €4,031 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
1.80ct Radiant
€1,074 EUR