Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

VG • E/VS1 • IGI LG837696816

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG837696816

Diamond specifications and retailer prices

From $231 USD
As of October 29, 2026
Save $2,042 USD (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,273 USD at Queensmith · As of October 27, 2026
View at Queensmith

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 E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG837696816 or 837696816. Listed at 20 retailers as of October 27, 2026, with prices from $231 to $2,273, a $2,042 spread on the same certified stone. Queensmith lists it at $2,273. 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
E
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837696816
Dimensions9.50 × 6.58 × 4.17 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.50 mm6.58 mm1.66 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837696816
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.4%

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: Oct 29
Current: $2,273 USD|Low: $221 USD|High: $2,273 USD|Avg: $754 USD
Queensmith
Retailer 2
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Retailer 21
October 31, 2026
Retailer 4$231 USD
Retailer 9$258 USD
Retailer 5$268 USD
Retailer 7$286 USD
Retailer 8$286 USD
Retailer 13$335 USD
Retailer 16$484 USD
Retailer 3$495 USD
Retailer 2$535 USD
Retailer 12$602 USD
Retailer 11$619 USD
Retailer 17$668 USD
Retailer 19$919 USD
Retailer 18$922 USD
Retailer 20$972 USD
Retailer 21$1,040 USD
Retailer 6$1,080 USD
Retailer 15$1,152 USD
Retailer 10$1,163 USD
Retailer 14$1,165 USD
Queensmith$2,273 USD

30 data points across 21 retailers

20 retailers$231 USD to $2,273 USD

A
Cheapest Retailer
-
$231 USD
A
Retailer 2
-
$258 USD
View
Final sale: no returns
A
Retailer 3
-
$268 USD
View
A
Retailer 4
-
$286 USD
View
A
Retailer 5
-
$286 USD
View
A
Retailer 6
-
$335 USD
£264 GBP
View
B+
Retailer 7
-
$484 USD
View
A
Retailer 8
-
$535 USD
£421 GBP
View
B+
Retailer 9
-
$602 USD
View
B+
Retailer 10
-
$619 USD
View
A
Retailer 11
-
$668 USD
A$1,028 AUD
View
B+
Retailer 12
-
$919 USD
View
B
Retailer 13
-
$922 USD
View
B+
Retailer 14
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$972 USD
View
Retailer 15
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$1,040 USD
View
Price last confirmed 12 days ago
B+
Retailer 16
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$1,080 USD
A$1,661 AUD
View
B
Retailer 17
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$1,152 USD
£907 GBP
View
B
Retailer 18
-
$1,163 USD
View
B
Retailer 19
-
$1,165 USD
View
Most Expensive
B
Queensmith
LG837696816 · Oct 27
$2,273 USD
£1,790 GBP
View
19 more retailers have this diamond
Prices start from $231 USDSave up to $2,042 USD

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
$231 USD