Oval|Lab Grown|IGI

1.23ct E VS1 Oval Lab Grown Diamond

EX • E/VS1 • IGI LG816658990

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816658990

Diamond specifications and retailer prices

From $582 NZD
$328 USD
As of October 30, 2026
Save $1,261 NZD (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,353 NZD at Do Amore Diamonds · As of October 23, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown oval diamond

This 1.23ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816658990 or 816658990. Listed at 17 retailers as of October 30, 2026, with a 217% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816658990
Dimensions8.25 × 6.04 × 3.81 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.25 mm6.04 mm1.23 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816658990
Side View
Table 62.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.1%

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 30
Current: $3,353 NZD|Low: $330 NZD|High: $3,353 NZD|Avg: $1,137 NZD|+1.6%
Do Amore Diamonds
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
October 27, 2026
Retailer 4$350 NZD
Retailer 6$390 NZD
Retailer 5$433 NZD
Retailer 16$433 NZD
Retailer 8$582 NZD
Retailer 12$599 NZD
Retailer 10$635 NZD
Retailer 13$814 NZD
Retailer 11$857 NZD
Retailer 15$1,178 NZD
Retailer 2$1,332 NZD
Retailer 17$1,398 NZD
Retailer 3$1,538 NZD
Retailer 9$1,843 NZD
Retailer 14$1,927 NZD
Retailer 7$2,102 NZD
Do Amore Diamonds$3,353 NZD

29 data points across 17 retailers

17 retailers$582 NZD to $1,843 NZD

Retailer 1
-
$350 NZD
$197 USD
Price last confirmed 11 days ago
Retailer 2
-
$350 NZD
$197 USD
View
Price last confirmed 9 days ago
Retailer 3
-
$433 NZD
$244 USD
View
Price last confirmed 15 days ago
Retailer 4
-
$433 NZD
$244 USD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
$582 NZD
$328 USD
View
Retailer 6
-
$599 NZD
£266 GBP
View
Price last confirmed 10 days ago
A
Retailer 7
-
$635 NZD
$358 USD
View
Retailer 8
-
$814 NZD
ZAR 7,414 ZAR
View
Price last confirmed 13 days ago
Retailer 9
-
$857 NZD
£380 GBP
View
Price last confirmed 9 days ago
Retailer 10
-
$1,178 NZD
A$1,021 AUD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
$1,332 NZD
A$1,155 AUD
View
Retailer 12
-
$1,398 NZD
$788 USD
View
Price last confirmed 9 days ago
Retailer 13
-
$1,538 NZD
$867 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$1,843 NZD
$1,039 USD
View
Retailer 15
-
$1,927 NZD
£855 GBP
View
Price last confirmed 11 days ago
Retailer 16
-
$2,102 NZD
$1,184 USD
View
Price last confirmed 8 days ago
Most Expensive
Do Amore Diamonds
27-67C134D2D · Oct 23
$3,353 NZD
$1,890 USD
View
Price last confirmed 8 days ago
16 more retailers have this diamond
Prices start from $582 NZDSave up to $1,261 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
1.23ct Oval
$582 NZD