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Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

EX • E/VS1 • IGI LG823666729

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG823666729

Diamond specifications and retailer prices

From $672 NZD
$379 USD
As of November 1, 2026
Save $2,947 NZD (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,620 NZD at Brilliant Earth · As of October 31, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG823666729 or 823666729. Listed at 24 retailers as of October 31, 2026, with prices from $672 to $3,620, a $2,947 spread on the same certified stone. Brilliant Earth lists it at $3,620. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823666729
Dimensions9.11 × 7.04 × 4.25 mm
L/W Ratio1.29
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.11 mm7.04 mm1.66 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823666729
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.4%

Caratlytics Score

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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: Nov 1
Current: $3,620 NZD|Low: $672 NZD|High: $3,797 NZD|Avg: $1,890 NZD|-4.7%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 1, 2026
Retailer 14$672 NZD
Retailer 7$752 NZD
Retailer 9$752 NZD
Retailer 3$834 NZD
Retailer 4$834 NZD
Retailer 21$1,100 NZD
Retailer 10$1,118 NZD
Retailer 6$1,157 NZD
Retailer 17$1,334 NZD
Retailer 15$1,359 NZD
Retailer 20$1,432 NZD
Retailer 13$1,495 NZD
Retailer 19$1,934 NZD
Retailer 18$2,055 NZD
Retailer 22$2,090 NZD
Retailer 12$2,652 NZD
Retailer 5$2,679 NZD
Retailer 8$2,747 NZD
Retailer 16$2,910 NZD
Retailer 11$3,130 NZD
Retailer 2$3,256 NZD
Brilliant Earth$3,620 NZD

28 data points across 22 retailers

24 retailers$672 NZD to $3,620 NZD

A
Cheapest Retailer
-
$672 NZD
$379 USD
A
Retailer 2
-
$752 NZD
$424 USD
View
Final sale: no returns
A
Retailer 3
-
$752 NZD
$424 USD
View
A
Retailer 4
-
$834 NZD
$470 USD
View
Retailer 5
-
$834 NZD
$470 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$1,100 NZD
$620 USD
View
A
Retailer 7
-
$1,118 NZD
$630 USD
View
A
Retailer 8
-
$1,157 NZD
$652 USD
View
A
Retailer 9
-
$1,334 NZD
€716 EUR
View
B+
Retailer 10
-
$1,359 NZD
A$1,178 AUD
View
B+
Retailer 11
-
$1,432 NZD
ZAR 13,041 ZAR
View
B+
Retailer 12
-
$1,495 NZD
£664 GBP
View
B+
Retailer 13
-
$1,934 NZD
A$1,677 AUD
View
Retailer 14
-
$1,988 NZD
$1,120 USD
View
Price last confirmed 53 days ago
B+
Retailer 15
-
$2,055 NZD
A$1,782 AUD
View
B
Retailer 16
-
$2,090 NZD
$1,178 USD
View
Retailer 17
-
$2,546 NZD
$1,435 USD
View
Price last confirmed 38 days ago
B
Retailer 18
-
$2,652 NZD
SGD 2,020 SGD
View
B
Retailer 19
-
$2,679 NZD
$1,510 USD
View
B
Retailer 20
-
$2,747 NZD
$1,548 USD
View
B
Retailer 21
-
$2,910 NZD
$1,640 USD
View
B
Retailer 22
-
$3,130 NZD
$1,764 USD
View
B
Retailer 23
-
$3,256 NZD
£1,445 GBP
View
Most Expensive
B
Brilliant Earth
21127214A · Oct 31
$3,620 NZD
$2,040 USD
View
23 more retailers have this diamond
Prices start from $672 NZDSave up to $2,947 NZD

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
$672 NZD