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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 $1,708 AUD
$1,200 USD
As of October 28, 2026
Save $299 AUD (15%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,007 AUD 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 $1,708 to $2,007, a $299 spread on the same certified stone. Zales lists it at $2,007. 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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Price History

Last verified: Oct 28
Current: $1,708 AUD|Low: $1,708 AUD|High: $3,018 AUD|Avg: $2,372 AUD|-43.4%
Retailer 1
Retailer 2
Zales
September 28, 2026
Retailer 1$1,708 AUD
Retailer 2$2,007 AUD
Zales$2,007 AUD

7 data points across 3 retailers

3 retailers$1,708 AUD to $2,007 AUD

B
Cheapest Retailer
-
$1,708 AUD
$1,200 USD
C
Retailer 2
-
$2,007 AUD
$1,410 USD
View
Most Expensive
C
Zales
524041540 · Oct 28
$2,007 AUD
$1,410 USD
View
2 more retailers have this diamond
Prices start from $1,708 AUDSave up to $299 AUD

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
$1,708 AUD