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Heart|Lab Grown|IGI

1.87ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG523299046

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG523299046

Diamond specifications and retailer prices

From $697 NZD
$393 USD
As of October 30, 2026
Save $3,366 NZD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,063 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.87ct lab-grown heart diamond

This 1.87ct lab-grown heart 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 LG523299046 or 523299046. Listed at 9 retailers as of October 30, 2026, with prices from $697 to $4,063, a $3,366 spread on the same certified stone. Do Amore Diamonds lists it at $4,063. 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

1.87
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523299046
Dimensions7.64 × 8.59 × 4.86 mm
L/W Ratio1.12
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
7.64 mm8.59 mm1.87 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523299046
Side View
Table 57.5%Crown 34.3°Girdle: MED-VTKPavilion 41°Culet: NoneDepth 56.6%

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: $4,063 NZD|Low: $392 NZD|High: $4,063 NZD|Avg: $1,298 NZD|+3.2%
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
October 29, 2026
Retailer 12$392 NZD
Retailer 11$697 NZD
Retailer 10$759 NZD
Retailer 5$763 NZD
Retailer 7$786 NZD
Retailer 9$947 NZD
Retailer 3$1,094 NZD
Retailer 4$1,297 NZD
Retailer 8$1,329 NZD
Retailer 6$1,744 NZD
Retailer 2$2,526 NZD
Do Amore Diamonds$4,063 NZD

13 data points across 12 retailers

9 retailers$697 NZD to $4,063 NZD

A
Cheapest Retailer
-
$697 NZD
$393 USD
B+
Retailer 2
-
$759 NZD
$428 USD
View
A
Retailer 3
-
$763 NZD
$430 USD
View
A
Retailer 4
-
$786 NZD
$443 USD
View
A
Retailer 5
-
$947 NZD
$534 USD
View
B+
Retailer 6
-
$1,329 NZD
$749 USD
View
B
Retailer 7
-
$1,744 NZD
$983 USD
View
B
Retailer 8
-
$2,526 NZD
£1,121 GBP
View
Most Expensive
B
Do Amore Diamonds
27-65B728839 · Oct 31
$4,063 NZD
$2,290 USD
View
8 more retailers have this diamond
Prices start from $697 NZDSave up to $3,366 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
1.87ct Heart
$697 NZD