CaratHunter
Plans
Round|Lab Grown|IGI

1.54ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG837654678

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837654678

Diamond specifications and retailer prices

From $415 USD
As of October 28, 2026
Save $692 USD (63%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,107 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round 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 LG837654678 or 837654678. Listed at 4 retailers as of October 26, 2026, with prices from $415 to $1,107, a $692 spread on the same certified stone. MOH London lists it at $1,107. 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

1.54
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837654678
Dimensions7.48 × 7.45 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.48 mm7.45 mm1.54 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837654678
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.7%

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 28
Current: $1,107 USD|Low: $390 USD|High: $1,119 USD|Avg: $595 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 3$415 USD
Retailer 2$427 USD
Retailer 4$467 USD
MOH London$1,107 USD

21 data points across 4 retailers

4 retailers$415 USD to $1,107 USD

B+
Cheapest Retailer
-
$415 USD
A
Retailer 2
-
$427 USD
£336 GBP
View
A
Retailer 3
-
$467 USD
View
Most Expensive
B
MOH London
LG837654678 · Oct 26
$1,107 USD
£872 GBP
View
3 more retailers have this diamond
Prices start from $415 USDSave up to $692 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
1.54ct Round
$415 USD