CaratHunter
Plans
Heart|Lab Grown|IGI

0.91ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG639414592

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG639414592

Diamond specifications and retailer prices

From $411 NZD
$231 USD
As of November 1, 2026
Save $2,398 NZD (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,808 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 0.91ct lab-grown heart diamond

This 0.91ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG639414592 or 639414592. Listed at 6 retailers as of October 31, 2026, with prices from $411 to $2,808, a $2,398 spread on the same certified stone. Brilliant Earth lists it at $2,808. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.91
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.9°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639414592
Dimensions5.94 × 6.69 × 3.76 mm
L/W Ratio1.13
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
5.94 mm6.69 mm0.91 ctD / IF
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG639414592
Side View
Table 59.0%Crown 37.9°Girdle: STK-THKPavilion 36.2°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: $2,808 NZD|Low: $85 NZD|High: $2,897 NZD|Avg: $1,083 NZD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7$85 NZD
Retailer 6$411 NZD
Retailer 4$741 NZD
Retailer 3$841 NZD
Retailer 8$880 NZD
Retailer 2$1,114 NZD
Retailer 5$2,052 NZD
Brilliant Earth$2,808 NZD

30 data points across 8 retailers

6 retailers$411 NZD to $2,808 NZD

A
Cheapest Retailer
-
$411 NZD
$231 USD
Final sale: no returns
A
Retailer 2
-
$741 NZD
$417 USD
View
A
Retailer 3
-
$841 NZD
$473 USD
View
B+
Retailer 4
-
$1,114 NZD
$627 USD
View
B
Retailer 5
-
$2,052 NZD
£909 GBP
View
Most Expensive
B
Brilliant Earth
15346653A · Oct 31
$2,808 NZD
$1,580 USD
View
5 more retailers have this diamond
Prices start from $411 NZDSave up to $2,398 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
0.91ct Heart
$411 NZD