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Heart|Lab Grown|IGI

1.80ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG634444150

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG634444150

Diamond specifications and retailer prices

From $645 NZD
$362 USD
As of October 27, 2026
Save $7,706 NZD (92%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $8,351 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.8ct lab-grown heart diamond

This 1.8ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG634444150 or 634444150. Listed at 24 retailers as of October 27, 2026, with prices from $645 to $8,351, a $7,706 spread on the same certified stone. Brilliant Earth lists it at $8,351. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634444150
Dimensions7.70 × 7.99 × 4.75 mm
L/W Ratio1.04
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
7.70 mm7.99 mm1.80 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634444150
Side View
Table 60.0%Crown 36°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 59.4%

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 27
Current: $8,351 NZD|Low: $721 NZD|High: $8,422 NZD|Avg: $2,743 NZD
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
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 14$744 NZD
Retailer 16$1,068 NZD
Retailer 8$1,184 NZD
Retailer 4$1,271 NZD
Retailer 12$1,359 NZD
Retailer 18$1,444 NZD
Retailer 2$1,447 NZD
Retailer 15$1,515 NZD
Retailer 3$1,975 NZD
Retailer 11$2,053 NZD
Retailer 17$2,112 NZD
Retailer 6$3,031 NZD
Retailer 10$3,043 NZD
Retailer 7$3,105 NZD
Retailer 13$3,462 NZD
Retailer 9$5,551 NZD
Retailer 5$5,715 NZD
Brilliant Earth$8,351 NZD

33 data points across 18 retailers

24 retailers$645 NZD to $8,351 NZD

A
Cheapest Retailer
-
$645 NZD
$362 USD
A
Retailer 2
-
$744 NZD
$418 USD
View
Final sale: no returns
A
Retailer 3
-
$748 NZD
$420 USD
View
A
Retailer 4
-
$798 NZD
$448 USD
View
A
Retailer 5
-
$798 NZD
$448 USD
View
A
Retailer 6
-
$1,068 NZD
$600 USD
View
A
Retailer 7
-
$1,184 NZD
$665 USD
View
A
Retailer 8
-
$1,271 NZD
$714 USD
View
A
Retailer 9
-
$1,359 NZD
€727 EUR
View
A
Retailer 10
-
$1,444 NZD
A$1,248 AUD
View
A
Retailer 11
-
$1,447 NZD
£640 GBP
View
A
Retailer 12
-
$1,515 NZD
ZAR 13,743 ZAR
View
Retailer 13
-
$1,964 NZD
$1,103 USD
View
Price last confirmed 15 days ago
A
Retailer 14
-
$1,975 NZD
$1,109 USD
View
A
Retailer 15
-
$2,053 NZD
A$1,774 AUD
View
A
Retailer 16
-
$2,112 NZD
$1,186 USD
View
B+
Retailer 17
-
$2,833 NZD
$1,591 USD
View
B+
Retailer 18
-
$3,031 NZD
$1,702 USD
View
B+
Retailer 19
-
$3,043 NZD
$1,709 USD
View
B+
Retailer 20
-
$3,105 NZD
$1,744 USD
View
B+
Retailer 21
-
$3,462 NZD
£1,531 GBP
View
Retailer 22
-
$5,551 NZD
A$4,796 AUD
View
Price last confirmed 21 days ago
B
Retailer 23
-
$5,715 NZD
$3,210 USD
View
Most Expensive
B
Brilliant Earth
16275227A · Oct 28
$8,351 NZD
$4,690 USD
View
23 more retailers have this diamond
Prices start from $645 NZDSave up to $7,706 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
1.80ct Heart
$645 NZD