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Round|Lab Grown|IGI

1.74ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG407939110

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407939110

Diamond specifications and retailer prices

From $960 USD
As of October 30, 2026
Save $4,276 USD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,236 USD at MOH London · As of October 27, 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 LG407939110 or 407939110. Listed at 11 retailers as of October 27, 2026, with prices from $960 to $5,236, a $4,276 spread on the same certified stone. MOH London lists it at $5,236. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407939110
Dimensions7.81 × 7.77 × 4.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.81 mm7.77 mm1.74 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407939110
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.0%

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 30
Current: $5,236 USD|Low: $960 USD|High: $5,300 USD|Avg: $2,638 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 2$960 USD
Retailer 7$1,579 USD
Retailer 10$1,717 USD
Retailer 12$1,767 USD
Retailer 8$1,831 USD
Retailer 5$1,917 USD
Retailer 13$2,000 USD
Retailer 3$2,472 USD
Retailer 9$2,882 USD
Retailer 6$3,238 USD
Retailer 11$3,432 USD
MOH London$5,236 USD
Retailer 4$5,241 USD

18 data points across 13 retailers

11 retailers$960 USD to $5,236 USD

A
Cheapest Retailer
-
$960 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
Retailer 5
-
$1,831 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,831 USD
View
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
LG407939110 · Oct 27
$5,236 USD
£4,123 GBP
View
10 more retailers have this diamond
Prices start from $960 USDSave up to $4,276 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
$960 USD