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Heart|Lab Grown|IGI

1.03ct E FL Heart Lab Grown Diamond

GD • E/FL • IGI LG818657603

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818657603

Diamond specifications and retailer prices

From $423 SGD
$330 USD
As of October 28, 2026
Save $1,499 SGD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,961 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.03ct lab-grown heart diamond

This 1.03ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818657603 or 818657603. Listed at 18 retailers as of October 28, 2026, with a 354% 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

1.03
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657603
Dimensions6.33 × 6.94 × 4.04 mm
L/W Ratio1.10
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
6.33 mm6.94 mm1.03 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657603
Side View
Table 57.0%Crown 35°Girdle: STK-THKPavilion 39°Culet: NoneDepth 58.2%

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: Oct 28
Current: $831 SGD|Low: $391 SGD|High: $2,412 SGD|Avg: $1,241 SGD|-22.7%
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
October 29, 2026
Retailer 2$423 SGD
Retailer 5$610 SGD
Retailer 8$664 SGD
Retailer 6$772 SGD
Retailer 12$787 SGD
Retailer 9$808 SGD
Retailer 11$827 SGD
Retailer 1$831 SGD
Retailer 13$1,053 SGD
Retailer 3$1,573 SGD
Retailer 4$1,711 SGD
Retailer 7$1,893 SGD
Retailer 10$1,922 SGD

33 data points across 13 retailers

18 retailers$423 SGD to $1,922 SGD

A
Cheapest Retailer
-
$423 SGD
$330 USD
Final sale: no returns
A
Retailer 2
-
$492 SGD
$384 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$551 SGD
$430 USD
View
Price last confirmed 30 days ago
B+
Retailer 4
-
$602 SGD
$470 USD
View
Price last confirmed 34 days ago
B+
Retailer 5
-
$610 SGD
$476 USD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
$610 SGD
$476 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$664 SGD
$518 USD
View
B+
Retailer 8
-
$772 SGD
€574 EUR
View
B+
Retailer 9
-
$787 SGD
$614 USD
View
B+
Retailer 10
-
$808 SGD
ZAR 10,180 ZAR
View
B
Retailer 11
-
$827 SGD
$645 USD
View
B+
Retailer 12
-
$831 SGD
£510 GBP
View
B
Retailer 13
-
$1,053 SGD
$821 USD
View
B
Retailer 14
-
$1,573 SGD
$1,227 USD
View
B
Retailer 15
-
$1,711 SGD
$1,335 USD
View
B
Retailer 16
-
$1,893 SGD
£1,163 GBP
View
B
Retailer 17
-
$1,922 SGD
$1,499 USD
View
Most Expensive
B
NZ Jewellers
3ab7322c-7c8b-4483-905f-a635ff7218f4 · Sep 30
$1,961 SGD
$1,530 USD
View
Price last confirmed 28 days ago
17 more retailers have this diamond
Prices start from $423 SGDSave up to $1,499 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
1.03ct Heart
$423 SGD