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Heart|Lab Grown|IGI

1.25ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG770664488

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG770664488

Diamond specifications and retailer prices

From HK$1,591 HKD
As of November 4, 2026
Save HK$7,308 HKD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$8,899 HKD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.25ct lab-grown heart diamond

This 1.25ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770664488 or 770664488. Listed at 13 retailers as of November 4, 2026, with prices from HK$1,591 to HK$8,899, a HK$7,308 spread on the same certified stone. Reve Diamonds lists it at HK$8,899. 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

1.25
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.7°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770664488
Dimensions6.71 × 7.46 × 4.29 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm7.46 mm1.25 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG770664488
Side View
Table 60.0%Crown 33.7°Girdle: MED-STKPavilion 40°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 4
Current: HK$3,151 HKD|Low: HK$940 HKD|High: HK$9,018 HKD|Avg: HK$4,798 HKD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
November 5, 2026
Retailer 2HK$940 HKD
Retailer 9HK$1,591 HKD
Retailer 6HK$3,111 HKD
Retailer 1HK$3,151 HKD
Retailer 8HK$3,315 HKD
Retailer 7HK$4,303 HKD
Retailer 4HK$5,996 HKD
Retailer 10HK$6,097 HKD
Retailer 5HK$6,505 HKD
Retailer 3HK$8,237 HKD
Reve DiamondsHK$8,899 HKD

32 data points across 11 retailers

13 retailersHK$1,591 HKD to HK$8,899 HKD

A
Cheapest Retailer
-
HK$1,591 HKD
Final sale: no returns
Retailer 2
-
HK$1,693 HKD
View
Price last confirmed 38 days ago
Retailer 3
-
HK$1,787 HKD
View
Price last confirmed 40 days ago
B+
Retailer 4
-
HK$3,111 HKD
View
B+
Retailer 5
-
HK$3,151 HKD
View
B+
Retailer 6
-
HK$3,315 HKD
View
B+
Retailer 7
-
HK$4,303 HKD
View
B
Retailer 8
-
HK$5,102 HKD
View
B
Retailer 9
-
HK$5,996 HKD
View
B
Retailer 10
-
HK$6,097 HKD
View
B
Retailer 11
-
HK$6,505 HKD
View
B
Retailer 12
-
HK$8,237 HKD
View
Most Expensive
B
Reve Diamonds
FA2468553 · Nov 4
HK$8,899 HKD
$1,136 USD
View
12 more retailers have this diamond
Prices start from HK$1,591 HKDSave up to HK$7,308 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
1.25ct Heart
HK$1,591 HKD