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Heart|Lab Grown|IGI

3.88ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG831604055

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831604055

Diamond specifications and retailer prices

From $4,185 USD
As of October 30, 2026
Save $14,415 USD (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $18,600 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.88ct lab-grown heart diamond

This 3.88ct 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 LG831604055 or 831604055. Listed at 20 retailers as of October 28, 2026, with prices from $4,185 to $18,600, a $14,415 spread on the same certified stone. Brilliant Earth lists it at $18,600. 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

3.88
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604055
Dimensions9.92 × 11.12 × 6.25 mm
L/W Ratio1.12
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
9.92 mm11.12 mm3.88 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604055
Side View
Table 59.0%Crown 32.8°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 56.2%

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 30
Current: $18,600 USD|Low: $4,686 USD|High: $18,600 USD|Avg: $9,106 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 8$4,686 USD
Retailer 3$4,855 USD
Retailer 4$4,855 USD
Retailer 6$4,905 USD
Retailer 7$5,386 USD
Retailer 19$5,592 USD
Retailer 15$5,747 USD
Retailer 2$5,794 USD
Retailer 9$6,066 USD
Retailer 13$6,280 USD
Retailer 17$7,180 USD
Retailer 14$10,105 USD
Retailer 12$11,271 USD
Retailer 18$11,751 USD
Retailer 5$14,144 USD
Retailer 16$16,629 USD
Retailer 10$17,270 USD
Retailer 11$18,213 USD
Brilliant Earth$18,600 USD

31 data points across 19 retailers

20 retailers$4,185 USD to $18,600 USD

A
Cheapest Retailer
-
$4,185 USD
B+
Retailer 2
-
$4,686 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,855 USD
View
Retailer 4
-
$4,855 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$4,905 USD
View
B+
Retailer 6
-
$5,386 USD
View
B+
Retailer 7
-
$5,592 USD
View
B+
Retailer 8
-
$5,747 USD
HK$44,900 HKD
View
B+
Retailer 9
-
$5,794 USD
£4,562 GBP
View
B+
Retailer 10
-
$6,066 USD
View
B+
Retailer 11
-
$6,280 USD
£4,945 GBP
View
B+
Retailer 12
-
$7,180 USD
View
B+
Retailer 13
-
$10,105 USD
£7,957 GBP
View
B+
Retailer 14
-
$11,271 USD
ZAR 182,082 ZAR
View
B
Retailer 15
-
$11,751 USD
View
B
Retailer 16
-
$14,144 USD
View
B
Retailer 17
-
$16,629 USD
SGD 22,471 SGD
View
B
Retailer 18
-
$17,270 USD
View
B
Retailer 19
-
$18,213 USD
View
Most Expensive
B
Brilliant Earth
21605064A · Oct 28
$18,600 USD
View
19 more retailers have this diamond
Prices start from $4,185 USDSave up to $14,415 USD

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
3.88ct Heart
$4,185 USD