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Heart|Lab Grown|IGI

1.81ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG678590671

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG678590671

Diamond specifications and retailer prices

From $632 NZD
$356 USD
As of October 30, 2026
Save $3,307 NZD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,939 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.81ct lab-grown heart diamond

This 1.81ct lab-grown heart 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 LG678590671 or 678590671. Listed at 12 retailers as of October 30, 2026, with prices from $632 to $3,939, a $3,307 spread on the same certified stone. Brilliant Earth lists it at $3,939. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678590671
Dimensions7.73 × 8.42 × 4.98 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Top View
7.73 mm8.42 mm1.81 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678590671
Side View
Table 56.0%Crown 35.4°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 59.1%

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: Oct 30
Current: $3,939 NZD|Low: $708 NZD|High: $4,613 NZD|Avg: $2,218 NZD|-14.6%
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
October 29, 2026
Retailer 14$708 NZD
Retailer 15$1,045 NZD
Retailer 2$1,217 NZD
Retailer 13$1,256 NZD
Retailer 9$1,260 NZD
Retailer 5$1,595 NZD
Retailer 7$1,710 NZD
Retailer 8$1,818 NZD
Retailer 11$2,296 NZD
Retailer 12$2,518 NZD
Retailer 3$2,940 NZD
Retailer 10$3,076 NZD
Retailer 6$3,453 NZD
Retailer 4$3,610 NZD
Brilliant Earth$3,939 NZD

24 data points across 15 retailers

12 retailers$632 NZD to $3,939 NZD

A
Cheapest Retailer
-
$632 NZD
$356 USD
A
Retailer 2
-
$708 NZD
$399 USD
View
Final sale: no returns
A
Retailer 3
-
$733 NZD
$413 USD
View
A
Retailer 4
-
$1,045 NZD
HK$4,600 HKD
View
B+
Retailer 5
-
$1,217 NZD
€653 EUR
View
B+
Retailer 6
-
$1,256 NZD
$708 USD
View
B+
Retailer 7
-
$1,260 NZD
$710 USD
View
B+
Retailer 8
-
$1,818 NZD
A$1,576 AUD
View
B
Retailer 9
-
$2,296 NZD
$1,294 USD
View
B
Retailer 10
-
$2,518 NZD
$1,419 USD
View
B
Retailer 11
-
$3,076 NZD
£1,365 GBP
View
Most Expensive
B
Brilliant Earth
15435809A · Oct 30
$3,939 NZD
$2,220 USD
View
11 more retailers have this diamond
Prices start from $632 NZDSave up to $3,307 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
1.81ct Heart
$632 NZD