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Heart|Lab Grown|IGI

1.00ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG836621580

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836621580

Diamond specifications and retailer prices

From $479 NZD
$270 USD
As of October 30, 2026
Save $2,857 NZD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,336 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836621580 or 836621580. Listed at 19 retailers as of October 30, 2026, with prices from $479 to $3,336, a $2,857 spread on the same certified stone. Brilliant Earth lists it at $3,336. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836621580
Dimensions6.21 × 6.77 × 4.04 mm
L/W Ratio1.09
Girdle conditionFaceted
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
6.21 mm6.77 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836621580
Side View
Table 61.0%Crown 39.8°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 59.7%

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: $3,336 NZD|Low: $543 NZD|High: $3,886 NZD|Avg: $1,586 NZD|-14.2%
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
October 30, 2026
Retailer 3$543 NZD
Retailer 2$629 NZD
Retailer 11$878 NZD
Retailer 8$969 NZD
Retailer 5$985 NZD
Retailer 10$1,019 NZD
Retailer 4$1,022 NZD
Retailer 7$1,039 NZD
Retailer 12$1,508 NZD
Retailer 6$1,762 NZD
Retailer 14$1,997 NZD
Retailer 13$2,356 NZD
Retailer 9$2,389 NZD
Brilliant Earth$3,336 NZD

34 data points across 14 retailers

19 retailers$479 NZD to $3,336 NZD

A
Cheapest Retailer
-
$479 NZD
$270 USD
A
Retailer 2
-
$543 NZD
$306 USD
View
Final sale: no returns
A
Retailer 3
-
$555 NZD
$313 USD
View
A
Retailer 4
-
$593 NZD
$334 USD
View
A
Retailer 5
-
$593 NZD
$334 USD
View
A
Retailer 6
-
$629 NZD
£279 GBP
View
A
Retailer 7
-
$878 NZD
$495 USD
View
A
Retailer 8
-
$969 NZD
€520 EUR
View
B+
Retailer 9
-
$985 NZD
$555 USD
View
B+
Retailer 10
-
$1,019 NZD
ZAR 9,278 ZAR
View
B+
Retailer 11
-
$1,022 NZD
$576 USD
View
B+
Retailer 12
-
$1,039 NZD
£461 GBP
View
B+
Retailer 13
-
$1,508 NZD
$850 USD
View
B
Retailer 14
-
$1,762 NZD
SGD 1,342 SGD
View
B+
Retailer 15
-
$1,906 NZD
$1,074 USD
View
B
Retailer 16
-
$1,997 NZD
$1,125 USD
View
B
Retailer 17
-
$2,356 NZD
$1,328 USD
View
B
Retailer 18
-
$2,389 NZD
£1,060 GBP
View
Most Expensive
B
Brilliant Earth
21590127A · Oct 30
$3,336 NZD
$1,880 USD
View
18 more retailers have this diamond
Prices start from $479 NZDSave up to $2,857 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
1.00ct Heart
$479 NZD