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Radiant|Lab Grown|IGI

1.80ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG538275665

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

Certificate IGI LG538275665

Diamond specifications and retailer prices

From €1,320 EUR
$1,480 USD
As of November 2, 2026
Save €1,895 EUR (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,582 EUR at NZ Jewellers · As of November 1, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG538275665 or 538275665. Listed at 12 retailers as of November 2, 2026, with a 144% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538275665
Dimensions8.77 × 6.06 × 3.99 mm
L/W Ratio1.45
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
8.77 mm6.06 mm1.80 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538275665
Side View
Table 68.5%Crown 38.2°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 65.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €3,582 EUR|Low: €1,320 EUR|High: €5,525 EUR|Avg: €2,570 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5€1,320 EUR
Retailer 7€1,648 EUR
Retailer 10€1,793 EUR
Retailer 11€1,845 EUR
Retailer 8€1,912 EUR
Retailer 3€2,060 EUR
Retailer 2€2,628 EUR
Retailer 9€2,997 EUR
Retailer 6€3,215 EUR
NZ Jewellers€3,582 EUR
Retailer 4€5,459 EUR

44 data points across 11 retailers

12 retailers€1,320 EUR to €3,215 EUR

B+
Cheapest Retailer
-
€1,320 EUR
$1,480 USD
B
Retailer 2
-
€1,648 EUR
$1,848 USD
View
B
Retailer 3
-
€1,793 EUR
$2,011 USD
View
B
Retailer 4
-
€1,845 EUR
$2,069 USD
View
Final sale: no returns
B
Retailer 5
-
€1,912 EUR
$2,144 USD
View
Retailer 6
-
€1,912 EUR
$2,144 USD
View
Price last confirmed 21 days ago
B
Retailer 7
-
€2,060 EUR
$2,310 USD
View
B
Retailer 8
-
€2,628 EUR
£2,321 GBP
View
B
Retailer 9
-
€2,997 EUR
$3,362 USD
View
B
Retailer 10
-
€3,215 EUR
$3,606 USD
View
Most Expensive
NZ Jewellers
ab334890-b7dd-48d4-a95b-7a968d70133b · Nov 1
€3,582 EUR
$4,018 USD
View
Price under review
10 more retailers have this diamond
Prices start from €1,320 EURSave up to €1,895 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.

B+
1.80ct Radiant
€1,320 EUR