Heart|Lab Grown|IGI

1.23ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG837672527

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG837672527

Diamond specifications and retailer prices

From $429 NZD
$241 USD
As of October 30, 2026
Save $2,149 NZD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,578 NZD at Michael Trio · As of October 30, 2026
View at Michael Trio

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG837672527 or 837672527. Listed at 15 retailers as of October 30, 2026, with prices from $429 to $2,578, a $2,149 spread on the same certified stone. Michael Trio lists it at $2,578. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837672527
Dimensions6.91 × 7.27 × 4.33 mm
L/W Ratio1.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.91 mm7.27 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837672527
Side View
Table 62.0%Crown 35.9°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 59.6%

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 30
Current: $2,578 NZD|Low: $429 NZD|High: $2,630 NZD|Avg: $1,377 NZD|+2.1%
Michael Trio
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
October 30, 2026
Retailer 12$429 NZD
Retailer 8$584 NZD
Retailer 2$641 NZD
Retailer 10$776 NZD
Retailer 15$818 NZD
Retailer 9$880 NZD
Retailer 6$1,026 NZD
Retailer 3$1,169 NZD
Retailer 5$1,542 NZD
Retailer 14$1,624 NZD
Retailer 11$1,633 NZD
Retailer 13$1,770 NZD
Retailer 4$1,918 NZD
Retailer 7$2,511 NZD
Michael Trio$2,578 NZD

28 data points across 15 retailers

15 retailers$429 NZD to $2,578 NZD

A
Cheapest Retailer
-
$429 NZD
$241 USD
Final sale: no returns
A
Retailer 2
-
$584 NZD
£258 GBP
View
B+
Retailer 3
-
$641 NZD
$360 USD
View
A
Retailer 4
-
$776 NZD
€415 EUR
View
A
Retailer 5
-
$818 NZD
ZAR 7,419 ZAR
View
B+
Retailer 6
-
$880 NZD
£389 GBP
View
B+
Retailer 7
-
$1,026 NZD
$576 USD
View
B+
Retailer 8
-
$1,169 NZD
A$1,010 AUD
View
B
Retailer 9
-
$1,542 NZD
$866 USD
View
B+
Retailer 10
-
$1,624 NZD
$912 USD
View
B+
Retailer 11
-
$1,633 NZD
$917 USD
View
B+
Retailer 12
-
$1,770 NZD
A$1,529 AUD
View
B+
Retailer 13
-
$1,918 NZD
£848 GBP
View
Retailer 14
-
$2,511 NZD
$1,410 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Michael Trio
1166624810 · Oct 30
$2,578 NZD
SGD 1,957 SGD
View
14 more retailers have this diamond
Prices start from $429 NZDSave up to $2,149 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 Heart
$429 NZD