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Oval|Lab Grown|IGI

1.66ct E VVS1 Oval Lab Grown Diamond

EX • E/VVS1 • IGI LG765627159

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG765627159

Diamond specifications and retailer prices

From $591 AUD
$415 USD
As of November 1, 2026
Save $3,224 AUD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,815 AUD 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG765627159 or 765627159. Listed at 16 retailers as of October 31, 2026, with prices from $591 to $3,815, a $3,224 spread on the same certified stone. Brilliant Earth lists it at $3,815. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG765627159
Dimensions9.15 × 6.53 × 4.21 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
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
9.15 mm6.53 mm1.66 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG765627159
Side View
Table 61.0%Crown 40.5°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
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: $3,815 AUD|Low: $471 AUD|High: $3,929 AUD|Avg: $1,468 AUD|-2.9%
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
November 2, 2026
Retailer 7$471 AUD
Retailer 12$591 AUD
Retailer 8$767 AUD
Retailer 11$829 AUD
Retailer 9$833 AUD
Retailer 2$839 AUD
Retailer 15$1,039 AUD
Retailer 10$1,095 AUD
Retailer 3$1,502 AUD
Retailer 13$1,748 AUD
Retailer 5$1,790 AUD
Retailer 4$1,802 AUD
Retailer 14$1,954 AUD
Retailer 6$2,100 AUD
Brilliant Earth$3,815 AUD

42 data points across 15 retailers

16 retailers$591 AUD to $3,815 AUD

Retailer 1
-
$471 AUD
$331 USD
Price last confirmed 25 days ago
B+
Retailer 2
-
$591 AUD
$415 USD
View
A
Retailer 3
-
$701 AUD
€469 EUR
View
A
Retailer 4
-
$767 AUD
ZAR 8,708 ZAR
View
A
Retailer 5
-
$829 AUD
$582 USD
View
A
Retailer 6
-
$833 AUD
€557 EUR
View
A
Retailer 7
-
$839 AUD
£464 GBP
View
B+
Retailer 8
-
$1,039 AUD
$730 USD
View
B+
Retailer 9
-
$1,095 AUD
$769 USD
View
B+
Retailer 10
-
$1,502 AUD
$1,055 USD
View
B+
Retailer 11
-
$1,748 AUD
$1,228 USD
View
B+
Retailer 12
-
$1,790 AUD
£990 GBP
View
B
Retailer 13
-
$1,802 AUD
$1,266 USD
View
B+
Retailer 14
-
$1,954 AUD
View
B
Retailer 15
-
$2,100 AUD
$1,475 USD
View
Most Expensive
B
Brilliant Earth
17432904A · Oct 31
$3,815 AUD
$2,680 USD
View
15 more retailers have this diamond
Prices start from $591 AUDSave up to $3,224 AUD

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
$591 AUD