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Round|Lab Grown|IGI

1.74ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG476159592

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476159592

Diamond specifications and retailer prices

From £378 GBP
$507 USD
As of October 30, 2026
Save £1,652 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,030 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 LG476159592 or 476159592. Listed at 12 retailers as of October 30, 2026, with prices from £378 to £2,030, a £1,652 spread on the same certified stone. Do Amore Diamonds lists it at £2,030. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476159592
Dimensions7.73 × 7.67 × 4.77 mm
L/W Ratio1.01
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
7.73 mm7.67 mm1.74 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476159592
Side View
Table 57.5%Crown 35.5°Girdle: MediumPavilion 41°Culet: NoneDepth 61.9%

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: £2,030 GBP|Low: £203 GBP|High: £2,030 GBP|Avg: £645 GBP|+16.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9£203 GBP
Retailer 10£224 GBP
Retailer 4£249 GBP
Retailer 7£378 GBP
Retailer 5£381 GBP
Retailer 12£462 GBP
Retailer 8£462 GBP
Retailer 3£649 GBP
Retailer 6£872 GBP
Retailer 11£1,028 GBP
Retailer 2£1,262 GBP
Do Amore Diamonds£2,030 GBP

16 data points across 12 retailers

12 retailers£378 GBP to £2,030 GBP

Retailer 1
-
£181 GBP
$242 USD
Price last confirmed 39 days ago
Retailer 2
-
£210 GBP
$281 USD
View
Price last confirmed 39 days ago
Retailer 3
-
£222 GBP
$297 USD
View
Price last confirmed 39 days ago
A
Retailer 4
-
£378 GBP
$507 USD
View
A
Retailer 5
-
£381 GBP
$510 USD
View
A
Retailer 6
-
£462 GBP
$619 USD
View
A
Retailer 7
-
£649 GBP
$869 USD
View
Retailer 8
-
£796 GBP
$1,066 USD
View
Price last confirmed 40 days ago
B+
Retailer 9
-
£872 GBP
$1,168 USD
View
A
Retailer 10
-
£1,028 GBP
$1,378 USD
View
B+
Retailer 11
-
£1,262 GBP
View
Most Expensive
B
Do Amore Diamonds
27-E3A057575 · Oct 30
£2,030 GBP
$2,720 USD
View
11 more retailers have this diamond
Prices start from £378 GBPSave up to £1,652 GBP

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
£378 GBP