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Oval|Lab Grown|IGI

1.74ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG494175787

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG494175787

Diamond specifications and retailer prices

From £896 GBP
$1,200 USD
As of October 31, 2026
Save £1,708 GBP (66%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,901 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494175787 or 494175787. Listed at 11 retailers as of October 31, 2026, with a 191% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494175787
Dimensions9.68 × 6.83 × 4.18 mm
L/W Ratio1.42
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
9.68 mm6.83 mm1.74 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494175787
Side View
Table 59.5%Crown 33.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.2%

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 31
Current: £2,176 GBP|Low: £896 GBP|High: £4,479 GBP|Avg: £2,255 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 5£896 GBP
Retailer 4£1,334 GBP
Retailer 6£1,548 GBP
Retailer 1£2,176 GBP
Retailer 7£2,428 GBP
Retailer 3£2,603 GBP
Retailer 2£4,443 GBP

41 data points across 7 retailers

11 retailers£896 GBP to £2,603 GBP

B+
Cheapest Retailer
-
£896 GBP
$1,200 USD
B
Retailer 2
-
£1,334 GBP
$1,788 USD
View
B
Retailer 3
-
£1,452 GBP
$1,945 USD
View
Retailer 4
-
£1,548 GBP
$2,074 USD
View
Price last confirmed 19 days ago
B
Retailer 5
-
£1,548 GBP
$2,074 USD
View
B
Retailer 6
-
£1,672 GBP
$2,240 USD
View
B
Retailer 7
-
£2,176 GBP
View
B
Retailer 8
-
£2,428 GBP
$3,253 USD
View
B
Retailer 9
-
£2,603 GBP
$3,488 USD
View
Most Expensive
NZ Jewellers
b445b5cd-9cba-4141-9fb9-647e99d26e38 · Oct 31
£2,901 GBP
$3,887 USD
View
Price under review
9 more retailers have this diamond
Prices start from £896 GBPSave up to £1,708 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 Oval
£896 GBP