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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG836619131

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836619131

Diamond specifications and retailer prices

From $1,761 NZD
$991 USD
As of November 1, 2026
Save $6,859 NZD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,620 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836619131 or 836619131. Listed at 14 retailers as of November 1, 2026, with prices from $1,761 to $8,620, a $6,859 spread on the same certified stone. Brilliant Earth lists it at $8,620. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619131
Dimensions8.06 × 7.10 × 4.53 mm
L/W Ratio1.14
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
8.06 mm7.10 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619131
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 38°Culet: NoneDepth 56.2%

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: Nov 1
Current: $8,620 NZD|Low: $1,761 NZD|High: $8,620 NZD|Avg: $4,303 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
November 3, 2026
Retailer 12$1,761 NZD
Retailer 8$2,065 NZD
Retailer 14$2,151 NZD
Retailer 10$2,177 NZD
Retailer 6$2,746 NZD
Retailer 2$2,811 NZD
Retailer 7$3,361 NZD
Retailer 11$3,798 NZD
Retailer 4$4,679 NZD
Retailer 3$5,415 NZD
Retailer 13$6,012 NZD
Retailer 5$6,342 NZD
Retailer 9$6,848 NZD
Brilliant Earth$8,620 NZD

9 data points across 14 retailers

14 retailers$1,761 NZD to $8,620 NZD

A
Cheapest Retailer
-
$1,761 NZD
$991 USD
Final sale: no returns
A
Retailer 2
-
$2,065 NZD
£915 GBP
View
B+
Retailer 3
-
$2,151 NZD
$1,210 USD
View
B+
Retailer 4
-
$2,177 NZD
$1,225 USD
View
B+
Retailer 5
-
$2,746 NZD
$1,545 USD
View
B+
Retailer 6
-
$2,811 NZD
£1,245 GBP
View
B+
Retailer 7
-
$3,361 NZD
ZAR 30,548 ZAR
View
B
Retailer 8
-
$3,798 NZD
$2,137 USD
View
B
Retailer 9
-
$4,679 NZD
$2,633 USD
View
B
Retailer 10
-
$5,415 NZD
$3,047 USD
View
B
Retailer 11
-
$6,012 NZD
$3,383 USD
View
B
Retailer 12
-
$6,342 NZD
$3,568 USD
View
B
Retailer 13
-
$6,848 NZD
£3,034 GBP
View
Most Expensive
B
Brilliant Earth
22318645A · Nov 2
$8,620 NZD
$4,850 USD
View
13 more retailers have this diamond
Prices start from $1,761 NZDSave up to $6,859 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
1.51ct Heart
$1,761 NZD