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Oval|Lab Grown|IGI

1.66ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG811602532

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG811602532

Diamond specifications and retailer prices

From €362 EUR
$406 USD
As of November 1, 2026
Save €4,381 EUR (92%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: €4,743 EUR at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.66ct lab-grown oval diamond

This 1.66ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811602532 or 811602532. Listed at 26 retailers as of November 1, 2026, with prices from €362 to €4,743, a €4,381 spread on the same certified stone. Brilliant Earth lists it at €4,743. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811602532
Dimensions9.71 × 6.68 × 4.09 mm
L/W Ratio1.45
Girdle conditionFaceted
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
9.71 mm6.68 mm1.66 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811602532
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €4,743 EUR|Low: €362 EUR|High: €4,743 EUR|Avg: €1,001 EUR
Brilliant Earth
Retailer 2
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Retailer 23
November 3, 2026
Retailer 19€362 EUR
Retailer 3€406 EUR
Retailer 9€406 EUR
Retailer 6€449 EUR
Retailer 22€449 EUR
Retailer 13€475 EUR
Retailer 10€491 EUR
Retailer 11€604 EUR
Retailer 21€606 EUR
Retailer 8€670 EUR
Retailer 5€716 EUR
Retailer 18€732 EUR
Retailer 17€775 EUR
Retailer 20€1,046 EUR
Retailer 7€1,098 EUR
Retailer 4€1,260 EUR
Retailer 15€1,431 EUR
Retailer 23€1,444 EUR
Retailer 16€1,476 EUR
Retailer 12€1,651 EUR
Retailer 14€1,682 EUR
Retailer 2€1,755 EUR
Brilliant Earth€4,743 EUR

29 data points across 23 retailers

26 retailers€362 EUR to €4,743 EUR

A
Cheapest Retailer
-
€362 EUR
$406 USD
A
Retailer 2
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€406 EUR
$455 USD
View
Final sale: no returns
A
Retailer 3
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€406 EUR
$455 USD
View
A
Retailer 4
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€449 EUR
$504 USD
View
Retailer 5
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€449 EUR
$504 USD
View
Price last confirmed 8 days ago
A
Retailer 6
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€475 EUR
£420 GBP
View
A
Retailer 7
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€491 EUR
HK$4,300 HKD
View
A
Retailer 8
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€604 EUR
$678 USD
View
A
Retailer 9
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€606 EUR
$680 USD
View
A
Retailer 10
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€670 EUR
$752 USD
View
A
Retailer 11
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€716 EUR
View
A
Retailer 12
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€732 EUR
£647 GBP
View
A
Retailer 13
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€775 EUR
ZAR 14,039 ZAR
View
B+
Retailer 14
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€1,046 EUR
A$1,805 AUD
View
B+
Retailer 15
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€1,098 EUR
$1,231 USD
View
B+
Retailer 16
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€1,260 EUR
$1,413 USD
View
B+
Retailer 17
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€1,431 EUR
SGD 2,169 SGD
View
B+
Retailer 18
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€1,444 EUR
$1,620 USD
View
B+
Retailer 19
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€1,476 EUR
$1,655 USD
View
B+
Retailer 20
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€1,564 EUR
$1,754 USD
View
B
Retailer 21
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€1,651 EUR
$1,852 USD
View
B
Retailer 22
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€1,682 EUR
$1,886 USD
View
B+
Retailer 23
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€1,755 EUR
£1,550 GBP
View
Retailer 24
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€1,902 EUR
£1,680 GBP
View
Price last confirmed 12 days ago
B
Retailer 25
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€2,532 EUR
$2,840 USD
View
Most Expensive
B
Brilliant Earth
20513645A · Nov 1
€4,743 EUR
$5,320 USD
View
25 more retailers have this diamond
Prices start from €362 EURSave up to €4,381 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.

A
1.66ct Oval
€362 EUR