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Oval|Lab Grown|IGI

1.66ct D IF Oval Lab Grown Diamond

VG • D/IF • IGI LG814638725

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG814638725

Diamond specifications and retailer prices

From €292 EUR
$328 USD
As of November 1, 2026
Save €2,191 EUR (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,483 EUR at Rare Carat · As of November 1, 2026
View at Rare Carat

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 very-good cut grade and certified by IGI LG814638725 or 814638725. Listed at 15 retailers as of November 1, 2026, with prices from €292 to €2,483, a €2,191 spread on the same certified stone. Rare Carat lists it at €2,483. 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

1.66
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814638725
Dimensions9.76 × 6.70 × 4.01 mm
L/W Ratio1.46
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
9.76 mm6.70 mm1.66 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814638725
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 59.9%

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: €1,299 EUR|Low: €292 EUR|High: €1,329 EUR|Avg: €771 EUR|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 3€292 EUR
Retailer 4€324 EUR
Retailer 7€343 EUR
Retailer 13€448 EUR
Retailer 11€450 EUR
Retailer 9€559 EUR
Retailer 8€569 EUR
Retailer 10€753 EUR
Retailer 12€995 EUR
Retailer 5€1,064 EUR
Retailer 6€1,084 EUR
Retailer 14€1,246 EUR
Retailer 1€1,299 EUR
Retailer 2€1,329 EUR

30 data points across 14 retailers

15 retailers€292 EUR to €2,483 EUR

A
Cheapest Retailer
-
€292 EUR
$328 USD
Final sale: no returns
Retailer 2
-
€324 EUR
$363 USD
View
Price last confirmed 25 days ago
A
Retailer 3
-
€343 EUR
£303 GBP
View
A
Retailer 4
-
€448 EUR
$502 USD
View
A
Retailer 5
-
€450 EUR
$505 USD
View
A
Retailer 6
-
€559 EUR
ZAR 10,121 ZAR
View
A
Retailer 7
-
€569 EUR
£502 GBP
View
A
Retailer 8
-
€753 EUR
A$1,300 AUD
View
B+
Retailer 9
-
€995 EUR
$1,116 USD
View
B+
Retailer 10
-
€1,064 EUR
$1,193 USD
View
B+
Retailer 11
-
€1,084 EUR
$1,216 USD
View
B+
Retailer 12
-
€1,246 EUR
$1,397 USD
View
B+
Retailer 13
-
€1,299 EUR
£1,147 GBP
View
B+
Retailer 14
-
€1,329 EUR
$1,490 USD
View
Most Expensive
B
Rare Carat
VK9833_l_814638725 · Nov 1
€2,483 EUR
$2,785 USD
View
14 more retailers have this diamond
Prices start from €292 EURSave up to €2,191 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
€292 EUR