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Round|Lab Grown|IGI

1.25ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG541252314

Shape and cutting style on the report: Round brilliant

Certificate IGI LG541252314

Diamond specifications and retailer prices

From €151 EUR
$169 USD
As of October 29, 2026
Save €488 EUR (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €884 EUR at MOH London · As of October 21, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round 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 top-tier cut grade and certified by IGI LG541252314 or 541252314. Listed at 15 retailers as of October 29, 2026, with a 322% 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

1.25
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541252314
Dimensions6.94 × 6.99 × 4.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.94 mm6.99 mm1.25 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541252314
Side View
Table 57.5%Crown 32.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.5%

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 29
Current: €884 EUR|Low: €146 EUR|High: €890 EUR|Avg: €370 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6€151 EUR
Retailer 9€170 EUR
Retailer 7€188 EUR
Retailer 8€258 EUR
Retailer 2€323 EUR
Retailer 3€334 EUR
Retailer 10€413 EUR
Retailer 4€619 EUR
Retailer 5€639 EUR
MOH London€884 EUR

42 data points across 10 retailers

15 retailers€151 EUR to €639 EUR

A
Cheapest Retailer
-
€151 EUR
$169 USD
A
Retailer 2
-
€170 EUR
$190 USD
View
Final sale: no returns
A
Retailer 3
-
€176 EUR
$197 USD
View
A
Retailer 4
-
€188 EUR
$210 USD
View
A
Retailer 5
-
€188 EUR
$210 USD
View
A
Retailer 6
-
€218 EUR
HK$1,900 HKD
View
B+
Retailer 7
-
€258 EUR
$288 USD
View
A
Retailer 8
-
€323 EUR
View
A
Retailer 9
-
€334 EUR
£294 GBP
View
A
Retailer 10
-
€352 EUR
$393 USD
View
B+
Retailer 11
-
€413 EUR
$461 USD
View
B
Retailer 12
-
€605 EUR
$676 USD
View
B
Retailer 13
-
€619 EUR
SGD 935 SGD
View
B
Retailer 14
-
€639 EUR
$714 USD
View
Most Expensive
MOH London
LG541252314 · Oct 21
€884 EUR
£778 GBP
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from €151 EURSave up to €488 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
1.25ct Round
€151 EUR