CaratHunter
Plans
Oval|Lab Grown|IGI

1.74ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG476156740

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG476156740

Diamond specifications and retailer prices

From $390 USD
As of October 30, 2026
Save $710 USD (65%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,100 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.74ct lab-grown oval diamond

This 1.74ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG476156740 or 476156740. Listed at 2 retailers as of October 29, 2026, with prices from $390 to $1,100, a $710 spread on the same certified stone. MOH London lists it at $1,100. 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

1.74
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476156740
Dimensions9.17 × 6.76 × 4.32 mm
L/W Ratio1.36
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
9.17 mm6.76 mm1.74 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476156740
Side View
Table 62.0%Crown 37.6°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 63.9%

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: Oct 30
Current: $1,100 USD|Low: $372 USD|High: $1,107 USD|Avg: $729 USD|-0.6%
MOH London
Retailer 2
October 30, 2026
Retailer 2$390 USD
MOH London$1,100 USD

11 data points across 2 retailers

2 retailers$390 USD to $1,100 USD

B+
Cheapest Retailer
-
$390 USD
Most Expensive
B
MOH London
LG476156740 · Oct 29
$1,100 USD
£866 GBP
View
1 more retailer has this diamond
Prices start from $390 USDSave up to $710 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.

B+
1.74ct Oval
$390 USD