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Round|Lab Grown|IGI

1.74ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG497158239

Shape and cutting style on the report: Round brilliant

Certificate IGI LG497158239

Diamond specifications and retailer prices

From $990 USD
As of October 30, 2026
Save $4,268 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,258 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.74ct lab-grown round diamond

This 1.74ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG497158239 or 497158239. Listed at 11 retailers as of October 29, 2026, with prices from $990 to $5,258, a $4,268 spread on the same certified stone. MOH London lists it at $5,258. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497158239
Dimensions7.66 × 7.69 × 4.77 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.66 mm7.69 mm1.74 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497158239
Side View
Table 56.5%Crown 35.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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 30
Current: $5,258 USD|Low: $990 USD|High: $5,300 USD|Avg: $2,432 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$990 USD
Retailer 4$1,579 USD
Retailer 7$1,767 USD
Retailer 5$1,831 USD
Retailer 8$1,831 USD
Retailer 9$2,000 USD
Retailer 10$2,472 USD
Retailer 6$2,882 USD
Retailer 3$3,238 USD
MOH London$5,258 USD

17 data points across 10 retailers

11 retailers$990 USD to $5,258 USD

A
Cheapest Retailer
-
$990 USD
B+
Retailer 2
-
$1,579 USD
View
B+
Retailer 3
-
$1,717 USD
View
B+
Retailer 4
-
$1,767 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,831 USD
View
Retailer 6
-
$1,831 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$2,000 USD
View
B
Retailer 8
-
$2,882 USD
View
B
Retailer 9
-
$3,238 USD
View
B
Retailer 10
-
$3,432 USD
View
Most Expensive
B
MOH London
LG497158239 · Oct 29
$5,258 USD
£4,140 GBP
View
10 more retailers have this diamond
Prices start from $990 USDSave up to $4,268 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
1.74ct Round
$990 USD