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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 $1,774 SGD
$1,388 USD
As of October 30, 2026
Save $1,715 SGD (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,706 SGD 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 17 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: Oct 30
Current: $2,558 SGD|Low: $1,278 SGD|High: $9,332 SGD|Avg: $4,727 SGD|+1.1%
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
Zales
October 29, 2026
Retailer 9$1,774 SGD
Retailer 7$2,057 SGD
Retailer 16$2,205 SGD
Retailer 15$2,400 SGD
Retailer 3$2,466 SGD
Retailer 17$2,469 SGD
Retailer 1$2,558 SGD
Retailer 2$2,782 SGD
Retailer 5$3,260 SGD
Retailer 4$3,490 SGD
Retailer 13$5,293 SGD
Retailer 10$5,464 SGD
Retailer 6$7,058 SGD
Retailer 14$7,657 SGD
Retailer 11$8,106 SGD
Retailer 12$8,706 SGD
Zales$8,706 SGD
Retailer 8$8,987 SGD

36 data points across 18 retailers

17 retailers$1,774 SGD to $3,490 SGD

B+
Cheapest Retailer
-
$1,774 SGD
$1,388 USD
Retailer 2
-
$2,057 SGD
A$2,475 AUD
View
Price last confirmed 22 days ago
B
Retailer 3
-
$2,205 SGD
$1,725 USD
View
B
Retailer 4
-
$2,400 SGD
$1,877 USD
View
B
Retailer 5
-
$2,466 SGD
A$2,968 AUD
View
B
Retailer 6
-
$2,469 SGD
$1,931 USD
View
Final sale: no returns
B
Retailer 7
-
$2,558 SGD
$2,001 USD
View
B
Retailer 8
-
$2,782 SGD
$2,176 USD
View
B
Retailer 9
-
$3,260 SGD
$2,550 USD
View
B
Retailer 10
-
$3,490 SGD
CA$3,791 CAD
View
Retailer 11
-
$5,293 SGD
$4,140 USD
View
Price under review
Retailer 12
-
$5,464 SGD
ZAR 69,046 ZAR
View
Price under review
Most Expensive
Zales
524692174 · Oct 30
$8,706 SGD
$6,810 USD
View
Price under review
12 more retailers have this diamond
Prices start from $1,774 SGDSave up to $1,715 SGD

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
$1,774 SGD