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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 $169 USD
As of October 29, 2026
Save $545 USD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $988 USD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $988 USD|Low: $163 USD|High: $994 USD|Avg: $414 USD|+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$169 USD
Retailer 9$190 USD
Retailer 7$210 USD
Retailer 8$288 USD
Retailer 2$361 USD
Retailer 3$373 USD
Retailer 10$461 USD
Retailer 4$692 USD
Retailer 5$714 USD
MOH London$988 USD

42 data points across 10 retailers

15 retailers$169 USD to $714 USD

A
Cheapest Retailer
-
$169 USD
A
Retailer 2
-
$190 USD
View
Final sale: no returns
A
Retailer 3
-
$197 USD
View
A
Retailer 4
-
$210 USD
View
A
Retailer 5
-
$210 USD
View
A
Retailer 6
-
$243 USD
HK$1,900 HKD
View
B+
Retailer 7
-
$288 USD
View
A
Retailer 8
-
$361 USD
€344 EUR
View
A
Retailer 9
-
$373 USD
£294 GBP
View
A
Retailer 10
-
$393 USD
View
B+
Retailer 11
-
$461 USD
View
B
Retailer 12
-
$676 USD
View
B
Retailer 13
-
$692 USD
SGD 935 SGD
View
B
Retailer 14
-
$714 USD
View
Most Expensive
MOH London
LG541252314 · Oct 21
$988 USD
£778 GBP
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from $169 USDSave up to $545 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
1.25ct Round
$169 USD