Heart|Lab Grown|IGI

1.23ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG729579236

Certificate IGI LG729579236

Diamond specifications and retailer prices

From $3,489 SGD
As of November 3, 2026
2 retailers carry this diamond
Most expensive: $3,489 SGD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729579236 or 729579236. Listed at 2 retailers as of November 4, 2026, with a relatively tight 0% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG729579236
Dimensions7.55 × 6.59 × 4.29 mm
L/W Ratio1.15
Top View
7.55 mm6.59 mm1.23 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729579236
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 3
Current: $3,489 SGD|Low: $3,489 SGD|High: $3,719 SGD|Avg: $3,546 SGD|-6.2%
Brilliant Earth
Retailer 2
October 30, 2026
Brilliant Earth$3,489 SGD
Retailer 2$3,489 SGD

2 data points across 2 retailers

2 retailers$3,489 SGD to $3,489 SGD

B
Cheapest Retailer
-
$3,489 SGD
Most Expensive
B
Brilliant Earth
15907571Y · Nov 4
$3,489 SGD
$2,730 USD
View
1 more retailer has this diamond
Prices start from $3,489 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
1.23ct Heart
$3,489 SGD