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Heart|Lab Grown|IGI

1.91ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG831604009

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831604009

Diamond specifications and retailer prices

From HK$7,650 HKD
$975 USD
As of November 2, 2026
Save HK$29,068 HKD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$36,718 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG831604009 or 831604009. Listed at 21 retailers as of October 31, 2026, with prices from HK$7,650 to HK$36,718, a HK$29,068 spread on the same certified stone. Brilliant Earth lists it at HK$36,718. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604009
Dimensions7.60 × 8.63 × 5.02 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
7.60 mm8.63 mm1.91 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604009
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40°Culet: NoneDepth 58.2%

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 2
Current: HK$36,718 HKD|Low: HK$7,650 HKD|High: HK$48,408 HKD|Avg: HK$23,449 HKD|-24.0%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 2HK$7,650 HKD
Retailer 6HK$8,568 HKD
Retailer 18HK$8,873 HKD
Retailer 13HK$10,031 HKD
Retailer 9HK$10,243 HKD
Retailer 20HK$10,615 HKD
Retailer 3HK$12,122 HKD
Retailer 16HK$12,867 HKD
Retailer 14HK$13,688 HKD
Retailer 5HK$13,910 HKD
Retailer 19HK$16,633 HKD
Retailer 12HK$20,171 HKD
Retailer 11HK$21,685 HKD
Retailer 4HK$26,393 HKD
Retailer 17HK$28,770 HKD
Retailer 7HK$29,749 HKD
Retailer 15HK$30,101 HKD
Retailer 10HK$30,912 HKD
Retailer 8HK$31,995 HKD
Brilliant EarthHK$36,718 HKD

30 data points across 20 retailers

21 retailersHK$7,650 HKD to HK$36,718 HKD

A
Cheapest Retailer
-
HK$7,650 HKD
$975 USD
A
Retailer 2
-
HK$8,568 HKD
$1,092 USD
View
Final sale: no returns
A
Retailer 3
-
HK$8,873 HKD
$1,131 USD
View
A
Retailer 4
-
HK$10,031 HKD
£1,007 GBP
View
A
Retailer 5
-
HK$10,243 HKD
View
A
Retailer 6
-
HK$10,615 HKD
$1,353 USD
View
Retailer 7
-
HK$11,800 HKD
$1,504 USD
View
Price last confirmed 20 days ago
B+
Retailer 8
-
HK$12,122 HKD
$1,545 USD
View
B+
Retailer 9
-
HK$12,867 HKD
$1,640 USD
View
B+
Retailer 10
-
HK$13,688 HKD
£1,374 GBP
View
B+
Retailer 11
-
HK$13,910 HKD
$1,773 USD
View
B+
Retailer 12
-
HK$16,633 HKD
$2,120 USD
View
B
Retailer 13
-
HK$20,171 HKD
$2,571 USD
View
B+
Retailer 14
-
HK$21,685 HKD
ZAR 44,652 ZAR
View
B
Retailer 15
-
HK$26,393 HKD
$3,364 USD
View
B
Retailer 16
-
HK$28,770 HKD
$3,667 USD
View
B
Retailer 17
-
HK$29,749 HKD
SGD 5,124 SGD
View
B
Retailer 18
-
HK$30,101 HKD
£3,021 GBP
View
B
Retailer 19
-
HK$30,912 HKD
$3,940 USD
View
B
Retailer 20
-
HK$31,995 HKD
$4,078 USD
View
Most Expensive
B
Brilliant Earth
21605244A · Oct 31
HK$36,718 HKD
$4,680 USD
View
20 more retailers have this diamond
Prices start from HK$7,650 HKDSave up to HK$29,068 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
1.91ct Heart
HK$7,650 HKD