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Oval|Lab Grown|IGI

1.69ct E SI2 Oval Lab Grown Diamond

E/SI2 • IGI LG691580377

Certificate IGI LG691580377

Diamond specifications and retailer prices

From £901 GBP
$1,200 USD
As of October 28, 2026
Save £158 GBP (15%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,059 GBP at Zales · As of October 28, 2026
View at Zales

About this 1.69ct lab-grown oval diamond

This 1.69ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included) and certified by IGI LG691580377 or 691580377. Listed at 3 retailers as of October 28, 2026, with prices from £901 to £1,059, a £158 spread on the same certified stone. Zales lists it at £1,059. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.69
Carat
E
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG691580377
Dimensions9.58 × 6.76 mm
L/W Ratio1.42
Top View
9.58 mm6.76 mm1.69 ctE / SI2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691580377
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £901 GBP|Low: £901 GBP|High: £1,592 GBP|Avg: £1,251 GBP|-43.4%
Retailer 1
Retailer 2
Zales
September 28, 2026
Retailer 1£901 GBP
Retailer 2£1,059 GBP
Zales£1,059 GBP

7 data points across 3 retailers

3 retailers£901 GBP to £1,059 GBP

B
Cheapest Retailer
-
£901 GBP
$1,200 USD
C
Retailer 2
-
£1,059 GBP
$1,410 USD
View
Most Expensive
C
Zales
524041540 · Oct 28
£1,059 GBP
$1,410 USD
View
2 more retailers have this diamond
Prices start from £901 GBPSave up to £158 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
1.69ct Oval
£901 GBP