Round|Lab Grown|IGI

1.25ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG219614474

Shape and cutting style on the report: Round brilliant

Certificate IGI LG219614474

Diamond specifications and retailer prices

From $332 USD
As of November 1, 2026
Save $905 USD (73%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,237 USD at MOH London · As of November 2, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG219614474 or 219614474. Listed at 6 retailers as of November 1, 2026, with prices from $332 to $1,237, a $905 spread on the same certified stone. MOH London lists it at $1,237. 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
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG219614474
Dimensions6.84 × 6.79 × 4.34 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
6.84 mm6.79 mm1.25 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG219614474
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.7%

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: Nov 1
Current: $1,237 USD|Low: $322 USD|High: $1,243 USD|Avg: $652 USD|+8.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2$332 USD
Retailer 5$420 USD
Retailer 4$475 USD
Retailer 3$597 USD
Retailer 7$704 USD
Retailer 6$970 USD
MOH London$1,237 USD

11 data points across 7 retailers

6 retailers$332 USD to $1,237 USD

A
Cheapest Retailer
-
$332 USD
A
Retailer 2
-
$420 USD
View
B+
Retailer 3
-
$475 USD
View
A
Retailer 4
-
$597 USD
View
B+
Retailer 5
-
$970 USD
View
Most Expensive
B
MOH London
LG_219614474 · Nov 2
$1,237 USD
£974 GBP
View
5 more retailers have this diamond
Prices start from $332 USDSave up to $905 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
$332 USD