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Heart|Lab Grown|IGI

1.00ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • IGI LG517287920

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG517287920

Diamond specifications and retailer prices

From HK$1,310 HKD
$167 USD
As of October 30, 2026
Save HK$5,465 HKD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$6,776 HKD at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG517287920 or 517287920. Listed at 13 retailers as of October 26, 2026, with prices from HK$1,310 to HK$6,776, a HK$5,465 spread on the same certified stone. MOH London lists it at HK$6,776. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517287920
Dimensions6.20 × 6.81 × 3.95 mm
L/W Ratio1.10
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
6.20 mm6.81 mm1.00 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517287920
Side View
Table 59.5%Crown 34°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 58.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$6,776 HKD|Low: HK$1,169 HKD|High: HK$6,845 HKD|Avg: HK$3,376 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5HK$1,169 HKD
Retailer 6HK$1,310 HKD
Retailer 3HK$1,961 HKD
Retailer 8HK$2,479 HKD
Retailer 2HK$2,490 HKD
Retailer 7HK$3,358 HKD
Retailer 4HK$4,919 HKD
Retailer 9HK$5,089 HKD
MOH LondonHK$6,776 HKD

41 data points across 9 retailers

13 retailersHK$1,310 HKD to HK$6,776 HKD

Retailer 1
-
HK$1,169 HKD
$149 USD
Price last confirmed 8 days ago
A
Retailer 2
-
HK$1,310 HKD
$167 USD
View
Final sale: no returns
Retailer 3
-
HK$1,357 HKD
$173 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
HK$1,451 HKD
$185 USD
View
A
Retailer 5
-
HK$1,451 HKD
$185 USD
View
B+
Retailer 6
-
HK$1,961 HKD
$250 USD
View
B+
Retailer 7
-
HK$2,479 HKD
$316 USD
View
B+
Retailer 8
-
HK$2,490 HKD
£250 GBP
View
B+
Retailer 9
-
HK$3,358 HKD
$428 USD
View
B
Retailer 10
-
HK$4,653 HKD
$593 USD
View
B
Retailer 11
-
HK$4,919 HKD
$627 USD
View
B
Retailer 12
-
HK$5,089 HKD
$649 USD
View
Most Expensive
B
MOH London
LG517287920 · Oct 26
HK$6,776 HKD
£680 GBP
View
12 more retailers have this diamond
Prices start from HK$1,310 HKDSave up to HK$5,465 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
1.00ct Heart
HK$1,310 HKD