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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 HK$1,812 HKD
$231 USD
As of November 1, 2026
Save HK$10,584 HKD (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$12,396 HKD 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 HK$1,812 to HK$12,396, a HK$10,584 spread on the same certified stone. Brilliant Earth lists it at HK$12,396. 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: HK$12,396 HKD|Low: HK$376 HKD|High: HK$12,788 HKD|Avg: HK$4,781 HKD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7HK$376 HKD
Retailer 6HK$1,812 HKD
Retailer 4HK$3,272 HKD
Retailer 3HK$3,711 HKD
Retailer 8HK$3,886 HKD
Retailer 2HK$4,919 HKD
Retailer 5HK$9,057 HKD
Brilliant EarthHK$12,396 HKD

30 data points across 8 retailers

6 retailersHK$1,812 HKD to HK$12,396 HKD

A
Cheapest Retailer
-
HK$1,812 HKD
$231 USD
Final sale: no returns
A
Retailer 2
-
HK$3,272 HKD
$417 USD
View
A
Retailer 3
-
HK$3,711 HKD
$473 USD
View
B+
Retailer 4
-
HK$4,919 HKD
$627 USD
View
B
Retailer 5
-
HK$9,057 HKD
£909 GBP
View
Most Expensive
B
Brilliant Earth
15346653A · Oct 31
HK$12,396 HKD
$1,580 USD
View
5 more retailers have this diamond
Prices start from HK$1,812 HKDSave up to HK$10,584 HKD

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
HK$1,812 HKD