CaratHunter
Plans
Oval|Lab Grown|IGI

1.66ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG627421853

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG627421853

Diamond specifications and retailer prices

From $539 NZD
$304 USD
As of November 1, 2026
Save $2,165 NZD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,705 NZD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG627421853 or 627421853. Listed at 20 retailers as of November 1, 2026, with prices from $539 to $2,705, a $2,165 spread on the same certified stone. Reve Diamonds lists it at $2,705. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.66
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627421853
Dimensions9.36 × 6.73 × 4.18 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.36 mm6.73 mm1.66 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627421853
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.1%

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: Nov 1
Current: $855 NZD|Low: $518 NZD|High: $3,282 NZD|Avg: $1,424 NZD|-1.2%
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
Retailer 15
Retailer 16
Reve Diamonds
November 2, 2026
Retailer 14$539 NZD
Retailer 8$601 NZD
Retailer 4$625 NZD
Retailer 15$669 NZD
Retailer 1$855 NZD
Retailer 3$940 NZD
Retailer 16$1,010 NZD
Retailer 11$1,088 NZD
Retailer 7$1,091 NZD
Retailer 9$1,177 NZD
Retailer 12$1,209 NZD
Retailer 6$1,723 NZD
Retailer 5$1,739 NZD
Retailer 2$2,147 NZD
Retailer 13$2,236 NZD
Retailer 10$2,677 NZD
Reve Diamonds$2,705 NZD

36 data points across 17 retailers

20 retailers$539 NZD to $2,705 NZD

A
Cheapest Retailer
-
$539 NZD
$304 USD
A
Retailer 2
-
$601 NZD
$339 USD
View
Final sale: no returns
A
Retailer 3
-
$625 NZD
$352 USD
View
A
Retailer 4
-
$669 NZD
$377 USD
View
Retailer 5
-
$669 NZD
$377 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$855 NZD
£380 GBP
View
A
Retailer 7
-
$940 NZD
$530 USD
View
A
Retailer 8
-
$1,010 NZD
$569 USD
View
B+
Retailer 9
-
$1,088 NZD
€584 EUR
View
B+
Retailer 10
-
$1,091 NZD
$615 USD
View
B+
Retailer 11
-
$1,177 NZD
£522 GBP
View
B+
Retailer 12
-
$1,209 NZD
A$1,048 AUD
View
B+
Retailer 13
-
$1,270 NZD
$716 USD
View
B+
Retailer 14
-
$1,723 NZD
$971 USD
View
Retailer 15
-
$1,739 NZD
$980 USD
View
Price last confirmed 11 days ago
B
Retailer 16
-
$2,147 NZD
$1,210 USD
View
B
Retailer 17
-
$2,231 NZD
$1,258 USD
View
B
Retailer 18
-
$2,236 NZD
$1,260 USD
View
B
Retailer 19
-
$2,677 NZD
£1,188 GBP
View
Most Expensive
B
Reve Diamonds
D564D4A9A · Nov 1
$2,705 NZD
$1,524 USD
View
19 more retailers have this diamond
Prices start from $539 NZDSave up to $2,165 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
$539 NZD