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Heart|Lab Grown|IGI

4.31ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG811634649

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811634649

Diamond specifications and retailer prices

From $5,333 SGD
$4,172 USD
As of October 30, 2026
Save $31,510 SGD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $36,843 SGD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.31ct lab-grown heart diamond

This 4.31ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811634649 or 811634649. Listed at 12 retailers as of October 29, 2026, with prices from $5,333 to $36,843, a $31,510 spread on the same certified stone. Do Amore Diamonds lists it at $36,843. 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

4.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811634649
Dimensions10.97 × 9.88 × 6.61 mm
L/W Ratio1.11
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
10.97 mm9.88 mm4.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811634649
Side View
Table 59.0%Crown 36.9°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 60.3%

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 30
Current: $36,843 SGD|Low: $5,333 SGD|High: $41,280 SGD|Avg: $14,133 SGD|-10.7%
Do Amore Diamonds
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 30, 2026
Retailer 6$5,333 SGD
Retailer 3$5,613 SGD
Retailer 10$5,776 SGD
Retailer 13$6,277 SGD
Retailer 4$6,327 SGD
Retailer 11$8,085 SGD
Retailer 12$8,569 SGD
Retailer 9$9,619 SGD
Retailer 7$11,880 SGD
Retailer 5$13,477 SGD
Retailer 8$14,276 SGD
Retailer 2$20,429 SGD
Do Amore Diamonds$36,843 SGD

28 data points across 13 retailers

12 retailers$5,333 SGD to $36,843 SGD

A
Cheapest Retailer
-
$5,333 SGD
$4,172 USD
A
Retailer 2
-
$5,613 SGD
$4,391 USD
View
A
Retailer 3
-
$5,776 SGD
$4,518 USD
View
A
Retailer 4
-
$6,277 SGD
$4,910 USD
View
A
Retailer 5
-
$6,327 SGD
$4,949 USD
View
A
Retailer 6
-
$8,085 SGD
$6,324 USD
View
A
Retailer 7
-
$8,569 SGD
$6,703 USD
View
A
Retailer 8
-
$9,619 SGD
$7,524 USD
View
A
Retailer 9
-
$11,880 SGD
€8,850 EUR
View
B+
Retailer 10
-
$14,276 SGD
£8,793 GBP
View
B+
Retailer 11
-
$20,429 SGD
$15,980 USD
View
Most Expensive
B
Do Amore Diamonds
27-9DF32E853 · Oct 29
$36,843 SGD
$28,820 USD
View
11 more retailers have this diamond
Prices start from $5,333 SGDSave up to $31,510 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
4.31ct Heart
$5,333 SGD