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Oval|Lab Grown|IGI

1.66ct D VS2 Oval Lab Grown Diamond

EX • D/VS2 • IGI LG821687001

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG821687001

Diamond specifications and retailer prices

From £166 GBP
$222 USD
As of October 29, 2026
Save £696 GBP (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £861 GBP at With Clarity · As of November 1, 2026
View at With Clarity

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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821687001 or 821687001. Listed at 13 retailers as of October 29, 2026, with prices from £166 to £861, a £696 spread on the same certified stone. With Clarity lists it at £861. 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
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821687001
Dimensions9.36 × 6.65 × 4.18 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.36 mm6.65 mm1.66 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821687001
Side View
Table 61.0%Crown 38°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £343 GBP|Low: £166 GBP|High: £910 GBP|Avg: £614 GBP|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
October 31, 2026
Retailer 7£166 GBP
Retailer 5£192 GBP
Retailer 10£229 GBP
Retailer 1£343 GBP
Retailer 2£455 GBP
Retailer 9£659 GBP
Retailer 6£661 GBP
Retailer 11£746 GBP
Retailer 8£765 GBP
Retailer 4£826 GBP
Retailer 3£846 GBP
With Clarity£861 GBP

26 data points across 12 retailers

13 retailers£166 GBP to £861 GBP

A
Cheapest Retailer
-
£166 GBP
$222 USD
A
Retailer 2
-
£192 GBP
$257 USD
View
Retailer 3
-
£229 GBP
View
Price last confirmed 16 days ago
A
Retailer 4
-
£343 GBP
€438 EUR
View
A
Retailer 5
-
£455 GBP
$609 USD
View
B+
Retailer 6
-
£659 GBP
$883 USD
View
B+
Retailer 7
-
£661 GBP
$886 USD
View
B+
Retailer 8
-
£746 GBP
$1,000 USD
View
Retailer 9
-
£765 GBP
$1,025 USD
View
Price last confirmed 11 days ago
B
Retailer 10
-
£802 GBP
$1,075 USD
View
B+
Retailer 11
-
£826 GBP
View
Retailer 12
-
£846 GBP
SGD 1,532 SGD
View
Price last confirmed 20 days ago
Most Expensive
B
With Clarity
821687001 · Nov 1
£861 GBP
$1,154 USD
View
12 more retailers have this diamond
Prices start from £166 GBPSave up to £696 GBP

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
£166 GBP