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Heart|Lab Grown|IGI

1.09ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818663190

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818663190

Diamond specifications and retailer prices

From $451 SGD
As of November 5, 2026
Save $1,746 SGD (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,239 SGD at NZ Jewellers · As of October 5, 2026
View at NZ Jewellers

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818663190 or 818663190. Listed at 17 retailers as of November 4, 2026, with a 387% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663190
Dimensions6.35 × 7.16 × 4.09 mm
L/W Ratio1.13
Girdle conditionFaceted
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
6.35 mm7.16 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663190
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 57.1%

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: Nov 5
Current: $451 SGD|Low: $451 SGD|High: $2,594 SGD|Avg: $1,359 SGD|-28.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 1$451 SGD
Retailer 4$699 SGD
Retailer 9$773 SGD
Retailer 11$815 SGD
Retailer 2$872 SGD
Retailer 5$883 SGD
Retailer 8$995 SGD
Retailer 3$1,319 SGD
Retailer 10$1,429 SGD
Retailer 7$1,666 SGD
Retailer 6$1,999 SGD
Retailer 12$2,197 SGD

36 data points across 12 retailers

17 retailers$451 SGD to $2,197 SGD

A
Cheapest Retailer
-
$451 SGD
Final sale: no returns
Retailer 2
-
$562 SGD
View
Price last confirmed 28 days ago
Retailer 3
-
$631 SGD
View
Price last confirmed 37 days ago
Retailer 4
-
$690 SGD
View
Price last confirmed 41 days ago
Retailer 5
-
$696 SGD
View
Price last confirmed 33 days ago
Retailer 6
-
$696 SGD
View
Price last confirmed 24 days ago
A
Retailer 7
-
$773 SGD
View
B+
Retailer 8
-
$815 SGD
View
B+
Retailer 9
-
$872 SGD
View
B+
Retailer 10
-
$883 SGD
View
B+
Retailer 11
-
$995 SGD
View
B+
Retailer 12
-
$1,319 SGD
View
B+
Retailer 13
-
$1,429 SGD
View
B+
Retailer 14
-
$1,666 SGD
View
B
Retailer 15
-
$1,999 SGD
View
B
Retailer 16
-
$2,197 SGD
View
Most Expensive
NZ Jewellers
59d82e18-1654-4883-b84e-e8722c4a5b41 · Oct 5
$2,239 SGD
$1,752 USD
View
Price last confirmed 31 days ago
16 more retailers have this diamond
Prices start from $451 SGDSave up to $1,746 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.

A
1.09ct Heart
$451 SGD