Round|Lab Grown|IGI

3.87ct F IF Round Lab Grown Diamond

EX • F/IF • IGI LG833679047

Shape and cutting style on the report: Hexagonal modified brilliant

Certificate IGI LG833679047

Diamond specifications and retailer prices

From $2,900 USD
As of November 1, 2026
Save $8,189 USD (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $15,440 USD at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

About this 3.87ct lab-grown round diamond

This 3.87ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG833679047 or 833679047. Listed at 8 retailers as of October 31, 2026, with a 282% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.87
Carat
F
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833679047
Dimensions15.13 × 7.87 × 5.12 mm
L/W Ratio1.92
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.13 mm7.87 mm3.87 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833679047
Side View
Table 65.0%Crown 35.6°Girdle: MED-STKPavilion 36.4°Culet: NoneDepth 65.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $15,440 USD|Low: $2,263 USD|High: $17,090 USD|Avg: $6,944 USD|+26.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 8$2,900 USD
Retailer 4$3,045 USD
Retailer 5$4,540 USD
Retailer 9$6,368 USD
Retailer 6$8,379 USD
Retailer 3$8,518 USD
Retailer 2$9,602 USD
Retailer 7$11,089 USD
Do Amore Diamonds$15,440 USD

29 data points across 9 retailers

8 retailers$2,900 USD to $11,089 USD

B+
Cheapest Retailer
-
$2,900 USD
Final sale: no returns
B+
Retailer 2
-
$3,045 USD
View
B
Retailer 3
-
$4,540 USD
View
B
Retailer 4
-
$8,379 USD
View
B
Retailer 5
-
$8,518 USD
£6,707 GBP
View
B
Retailer 6
-
$9,602 USD
£7,561 GBP
View
B
Retailer 7
-
$11,089 USD
View
Most Expensive
Do Amore Diamonds
20-E100641 · Nov 3
$15,440 USD
View
Price under review
7 more retailers have this diamond
Prices start from $2,900 USDSave up to $8,189 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.

B+
3.87ct Round
$2,900 USD