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Heart|Lab Grown|IGI

0.78ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG708585978

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG708585978

Diamond specifications and retailer prices

From HK$10,890 HKD
$1,388 USD
As of November 1, 2026
Save HK$10,526 HKD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$53,429 HKD at Zales · As of October 30, 2026
View at Zales

About this 0.78ct lab-grown heart diamond

This 0.78ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG708585978 or 708585978. Listed at 18 retailers as of October 30, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.78
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG708585978
Dimensions6.27 × 5.61 × 3.81 mm
L/W Ratio1.12
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
6.27 mm5.61 mm0.78 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG708585978
Side View
Table 61.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.8%

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: Nov 1
Current: HK$49,491 HKD|Low: HK$7,846 HKD|High: HK$57,274 HKD|Avg: HK$29,106 HKD|-0.3%
Retailer 1
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
Zales
November 1, 2026
Retailer 10HK$10,890 HKD
Retailer 8HK$12,622 HKD
Retailer 18HK$13,534 HKD
Retailer 17HK$14,726 HKD
Retailer 4HK$15,136 HKD
Retailer 2HK$15,150 HKD
Retailer 12HK$15,699 HKD
Retailer 3HK$17,072 HKD
Retailer 6HK$20,007 HKD
Retailer 5HK$21,416 HKD
Retailer 15HK$32,481 HKD
Retailer 13HK$33,532 HKD
Retailer 7HK$43,316 HKD
Retailer 16HK$46,995 HKD
Retailer 11HK$47,157 HKD
Retailer 1HK$49,491 HKD
Retailer 14HK$53,429 HKD
ZalesHK$53,429 HKD
Retailer 9HK$55,155 HKD

36 data points across 19 retailers

18 retailersHK$10,890 HKD to HK$21,416 HKD

B+
Cheapest Retailer
-
HK$10,890 HKD
$1,388 USD
Retailer 2
-
HK$12,622 HKD
A$2,475 AUD
View
Price last confirmed 25 days ago
B+
Retailer 3
-
HK$13,534 HKD
$1,725 USD
View
B
Retailer 4
-
HK$14,726 HKD
$1,877 USD
View
B
Retailer 5
-
HK$15,136 HKD
A$2,968 AUD
View
B
Retailer 6
-
HK$15,150 HKD
$1,931 USD
View
Final sale: no returns
B
Retailer 7
-
HK$15,699 HKD
$2,001 USD
View
B
Retailer 8
-
HK$17,072 HKD
$2,176 USD
View
B
Retailer 9
-
HK$20,007 HKD
$2,550 USD
View
B
Retailer 10
-
HK$21,416 HKD
CA$3,791 CAD
View
Retailer 11
-
HK$32,481 HKD
$4,140 USD
View
Price under review
Retailer 12
-
HK$33,532 HKD
ZAR 69,046 ZAR
View
Price under review
Most Expensive
Zales
524692174 · Oct 30
HK$53,429 HKD
$6,810 USD
View
Price under review
12 more retailers have this diamond
Prices start from HK$10,890 HKDSave up to HK$10,526 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+
0.78ct Heart
HK$10,890 HKD