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Heart|Lab Grown|IGI

1.80ct I SI1 Heart Lab Grown Diamond

VG • I/SI1 • IGI LG425067609

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG425067609

Diamond specifications and retailer prices

From HK$8,238 HKD
$1,050 USD
As of October 30, 2026
Save HK$18,194 HKD (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$40,484 HKD at MOH London · As of October 21, 2026
View at MOH London

About this 1.8ct lab-grown heart diamond

This 1.8ct lab-grown heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG425067609 or 425067609. Listed at 11 retailers as of October 29, 2026, with a 221% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.80
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067609
Dimensions8.71 × 7.28 × 4.81 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.71 mm7.28 mm1.80 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067609
Side View
Table 64.0%Crown 32.6°Girdle: STK-THKPavilion 40°Culet: NoneDepth 55.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$40,484 HKD|Low: HK$8,238 HKD|High: HK$40,813 HKD|Avg: HK$21,821 HKD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2HK$8,238 HKD
Retailer 5HK$12,153 HKD
Retailer 8HK$13,612 HKD
Retailer 6HK$14,099 HKD
Retailer 9HK$15,456 HKD
Retailer 10HK$19,096 HKD
Retailer 3HK$19,881 HKD
Retailer 7HK$22,188 HKD
Retailer 4HK$24,934 HKD
Retailer 11HK$40,374 HKD
MOH LondonHK$40,484 HKD

13 data points across 11 retailers

11 retailersHK$8,238 HKD to HK$26,432 HKD

B+
Cheapest Retailer
-
HK$8,238 HKD
$1,050 USD
B
Retailer 2
-
HK$12,153 HKD
$1,549 USD
View
B
Retailer 3
-
HK$13,228 HKD
$1,686 USD
View
B
Retailer 4
-
HK$13,612 HKD
$1,735 USD
View
Final sale: no returns
B
Retailer 5
-
HK$14,099 HKD
$1,797 USD
View
Retailer 6
-
HK$14,099 HKD
$1,797 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
HK$15,456 HKD
$1,970 USD
View
B
Retailer 8
-
HK$22,188 HKD
$2,828 USD
View
B
Retailer 9
-
HK$24,934 HKD
$3,178 USD
View
B
Retailer 10
-
HK$26,432 HKD
$3,369 USD
View
Most Expensive
MOH London
LG425067609 · Oct 21
HK$40,484 HKD
£4,063 GBP
View
Price last confirmed 9 days ago
10 more retailers have this diamond
Prices start from HK$8,238 HKDSave up to HK$18,194 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.

B+
1.80ct Heart
HK$8,238 HKD