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Oval|Lab Grown|IGI

1.68ct D SI2 Oval Lab Grown Diamond

D/SI2 • IGI LG691580431

Certificate IGI LG691580431

Diamond specifications and retailer prices

From €1,137 EUR
$1,270 USD
As of October 30, 2026
Save €242 EUR (18%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €1,378 EUR at Kay Jewelers · As of October 30, 2026
View at Kay Jewelers

About this 1.68ct lab-grown oval diamond

This 1.68ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included) and certified by IGI LG691580431 or 691580431. Listed at 3 retailers as of October 30, 2026, with prices from €1,137 to €1,378, a €242 spread on the same certified stone. Kay Jewelers lists it at €1,378. 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

1.68
Carat
D
Color
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG691580431
Dimensions9.42 × 6.69 mm
L/W Ratio1.41
Top View
9.42 mm6.69 mm1.68 ctD / SI2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691580431
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.7%

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 30
Current: €1,378 EUR|Low: €1,137 EUR|High: €1,889 EUR|Avg: €1,615 EUR|-21.4%
Kay Jewelers
Retailer 2
Retailer 3
September 28, 2026
Retailer 2€1,137 EUR
Kay Jewelers€1,378 EUR
Retailer 3€1,378 EUR

6 data points across 3 retailers

3 retailers€1,137 EUR to €1,378 EUR

B
Cheapest Retailer
-
€1,137 EUR
$1,270 USD
C
Retailer 2
-
€1,378 EUR
$1,540 USD
View
Most Expensive
C
Kay Jewelers
254651219 · Oct 30
€1,378 EUR
$1,540 USD
View
2 more retailers have this diamond
Prices start from €1,137 EURSave up to €242 EUR

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
1.68ct Oval
€1,137 EUR