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Heart|Lab Grown|IGI

1.91ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818681481

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681481

Diamond specifications and retailer prices

From $1,254 NZD
$707 USD
As of October 30, 2026
Save $9,888 NZD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $11,143 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.91ct lab-grown heart diamond

This 1.91ct 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 LG818681481 or 818681481. Listed at 12 retailers as of October 30, 2026, with prices from $1,254 to $11,143, a $9,888 spread on the same certified stone. Do Amore Diamonds lists it at $11,143. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681481
Dimensions7.66 × 8.39 × 5.22 mm
L/W Ratio1.10
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
7.66 mm8.39 mm1.91 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681481
Side View
Table 56.0%Crown 35.6°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.2%

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: Oct 30
Current: $11,143 NZD|Low: $1,254 NZD|High: $19,162 NZD|Avg: $5,117 NZD|-41.9%
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
Retailer 13
November 1, 2026
Retailer 8$1,254 NZD
Retailer 13$1,364 NZD
Retailer 3$1,810 NZD
Retailer 9$2,365 NZD
Retailer 4$2,369 NZD
Retailer 6$2,698 NZD
Retailer 11$3,423 NZD
Retailer 10$3,584 NZD
Retailer 12$4,516 NZD
Retailer 2$6,021 NZD
Retailer 7$7,967 NZD
Retailer 5$9,927 NZD
Do Amore Diamonds$11,143 NZD

27 data points across 13 retailers

12 retailers$1,254 NZD to $11,143 NZD

A
Cheapest Retailer
-
$1,254 NZD
$707 USD
A
Retailer 2
-
$1,364 NZD
$769 USD
View
A
Retailer 3
-
$1,810 NZD
$1,020 USD
View
A
Retailer 4
-
$2,365 NZD
$1,333 USD
View
A
Retailer 5
-
$2,369 NZD
$1,335 USD
View
B+
Retailer 6
-
$2,698 NZD
€1,448 EUR
View
B+
Retailer 7
-
$3,423 NZD
A$2,968 AUD
View
B+
Retailer 8
-
$3,584 NZD
$2,020 USD
View
B+
Retailer 9
-
$4,516 NZD
$2,545 USD
View
B
Retailer 10
-
$6,021 NZD
£2,672 GBP
View
B
Retailer 11
-
$7,967 NZD
$4,490 USD
View
Most Expensive
B
Do Amore Diamonds
27-B1165FDF8 · Oct 31
$11,143 NZD
$6,280 USD
View
11 more retailers have this diamond
Prices start from $1,254 NZDSave up to $9,888 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
1.91ct Heart
$1,254 NZD