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Heart|Lab Grown|IGI

1.71ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG830620123

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG830620123

Diamond specifications and retailer prices

From HK$7,856 HKD
£788 GBP
As of November 1, 2026
Save HK$23,998 HKD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$31,854 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.71ct lab-grown heart diamond

This 1.71ct 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 very-good cut grade and certified by IGI LG830620123 or 830620123. Listed at 9 retailers as of October 31, 2026, with prices from HK$7,856 to HK$31,854, a HK$23,998 spread on the same certified stone. Brilliant Earth lists it at HK$31,854. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620123
Dimensions7.42 × 8.32 × 4.78 mm
L/W Ratio1.12
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
7.42 mm8.32 mm1.71 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620123
Side View
Table 56.0%Crown 37.3°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 57.5%

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$31,854 HKD|Low: HK$7,856 HKD|High: HK$42,994 HKD|Avg: HK$18,765 HKD|-25.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 3HK$7,856 HKD
Retailer 4HK$10,648 HKD
Retailer 9HK$11,133 HKD
Retailer 6HK$11,243 HKD
Retailer 5HK$16,523 HKD
Retailer 8HK$23,991 HKD
Retailer 2HK$26,046 HKD
Retailer 7HK$28,331 HKD
Brilliant EarthHK$31,854 HKD

4 data points across 9 retailers

9 retailersHK$7,856 HKD to HK$31,854 HKD

A
Cheapest Retailer
-
HK$7,856 HKD
£788 GBP
B+
Retailer 2
-
HK$10,648 HKD
£1,069 GBP
View
B+
Retailer 3
-
HK$11,133 HKD
$1,419 USD
View
B+
Retailer 4
-
HK$11,243 HKD
$1,433 USD
View
B
Retailer 5
-
HK$16,523 HKD
$2,106 USD
View
B
Retailer 6
-
HK$23,991 HKD
$3,058 USD
View
B
Retailer 7
-
HK$26,046 HKD
£2,614 GBP
View
B
Retailer 8
-
HK$28,331 HKD
$3,611 USD
View
Most Expensive
B
Brilliant Earth
22348642A · Oct 31
HK$31,854 HKD
$4,060 USD
View
8 more retailers have this diamond
Prices start from HK$7,856 HKDSave up to HK$23,998 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
1.71ct Heart
HK$7,856 HKD