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Heart|Lab Grown|IGI

3.51ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG627400559

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG627400559

Diamond specifications and retailer prices

From $3,287 SGD
$2,571 USD
As of October 30, 2026
Save $10,012 SGD (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,298 SGD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.51ct lab-grown heart diamond

This 3.51ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG627400559 or 627400559. Listed at 16 retailers as of October 30, 2026, with prices from $3,287 to $13,298, a $10,012 spread on the same certified stone. Taylor and Hart lists it at $13,298. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627400559
Dimensions9.04 × 10.52 × 6.37 mm
L/W Ratio1.16
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
9.04 mm10.52 mm3.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627400559
Side View
Table 58.0%Crown 39.3°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 60.6%

Caratlytics Score

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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 30
Current: $5,148 SGD|Low: $3,155 SGD|High: $11,001 SGD|Avg: $5,758 SGD|-0.2%
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 31, 2026
Retailer 10$3,287 SGD
Retailer 3$3,576 SGD
Retailer 5$3,679 SGD
Retailer 11$3,812 SGD
Retailer 4$3,968 SGD
Retailer 9$4,021 SGD
Retailer 1$5,148 SGD
Retailer 2$5,240 SGD
Retailer 8$5,594 SGD
Retailer 13$5,939 SGD
Retailer 6$8,853 SGD
Retailer 12$10,179 SGD
Retailer 7$10,220 SGD

42 data points across 13 retailers

16 retailers$3,287 SGD to $13,298 SGD

A
Cheapest Retailer
-
$3,287 SGD
$2,571 USD
A
Retailer 2
-
$3,576 SGD
$2,797 USD
View
A
Retailer 3
-
$3,679 SGD
$2,878 USD
View
Final sale: no returns
A
Retailer 4
-
$3,812 SGD
$2,982 USD
View
Retailer 5
-
$3,812 SGD
$2,982 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$3,968 SGD
$3,104 USD
View
A
Retailer 7
-
$4,021 SGD
$3,145 USD
View
A
Retailer 8
-
$5,148 SGD
£3,171 GBP
View
A
Retailer 9
-
$5,240 SGD
$4,099 USD
View
A
Retailer 10
-
$5,256 SGD
$4,111 USD
View
B+
Retailer 11
-
$5,594 SGD
$4,376 USD
View
B+
Retailer 12
-
$5,939 SGD
$4,646 USD
View
B+
Retailer 13
-
$8,853 SGD
ZAR 111,872 ZAR
View
B+
Retailer 14
-
$10,179 SGD
$7,962 USD
View
B+
Retailer 15
-
$10,220 SGD
£6,295 GBP
View
Most Expensive
B
Taylor and Hart
3KFINA1 · Oct 30
$13,298 SGD
$10,402 USD
View
15 more retailers have this diamond
Prices start from $3,287 SGDSave up to $10,012 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
3.51ct Heart
$3,287 SGD