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Round|Lab Grown|IGI

1.74ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG526287424

Shape and cutting style on the report: Round brilliant

Certificate IGI LG526287424

Diamond specifications and retailer prices

From £264 GBP
$352 USD
As of October 28, 2026
Save £434 GBP (62%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £698 GBP at Rare Carat · As of October 25, 2026
View at Rare Carat

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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526287424 or 526287424. Listed at 3 retailers as of October 25, 2026, with prices from £264 to £698, a £434 spread on the same certified stone. Rare Carat lists it at £698. 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
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526287424
Dimensions7.78 × 7.73 × 4.64 mm
L/W Ratio1.01
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
7.78 mm7.73 mm1.74 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526287424
Side View
Table 59.0%Crown 33.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £698 GBP|Low: £169 GBP|High: £1,096 GBP|Avg: £564 GBP|-2.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 18, 2026
Retailer 5£169 GBP
Retailer 3£264 GBP
Retailer 8£317 GBP
Retailer 9£513 GBP
Retailer 7£568 GBP
Retailer 2£571 GBP
Retailer 6£672 GBP
Rare Carat£698 GBP
Retailer 4£788 GBP
Retailer 10£1,096 GBP

4 data points across 10 retailers

3 retailers£264 GBP to £698 GBP

B+
Cheapest Retailer
-
£264 GBP
$352 USD
B
Retailer 2
-
£571 GBP
$760 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Rare Carat
G2-59 · Oct 25
£698 GBP
$930 USD
View
2 more retailers have this diamond
Prices start from £264 GBPSave up to £434 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.

B+
1.74ct Round
£264 GBP