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Oval|Lab Grown|IGI

3.87ct E FL Oval Lab Grown Diamond

EX • E/FL • IGI LG780663598

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780663598

Diamond specifications and retailer prices

From $3,954 AUD
HK$21,700 HKD
As of October 30, 2026
Save $8,944 AUD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $16,111 AUD at Taylor and Hart · As of October 5, 2026
View at Taylor and Hart

About this 3.87ct lab-grown oval diamond

This 3.87ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663598 or 780663598. Listed at 12 retailers as of October 30, 2026, with a 226% 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
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663598
Dimensions12.65 × 8.69 × 5.50 mm
L/W Ratio1.46
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
12.65 mm8.69 mm3.87 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663598
Side View
Table 61.0%Crown 35.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $12,898 AUD|Low: $3,614 AUD|High: $21,852 AUD|Avg: $10,094 AUD|-40.5%
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
Retailer 14
Taylor and Hart
October 30, 2026
Retailer 6$3,614 AUD
Retailer 12$3,954 AUD
Retailer 4$4,671 AUD
Retailer 11$4,890 AUD
Retailer 7$5,160 AUD
Retailer 2$6,377 AUD
Retailer 10$7,538 AUD
Retailer 9$8,484 AUD
Retailer 8$9,367 AUD
Retailer 3$10,734 AUD
Retailer 5$11,612 AUD
Retailer 14$11,875 AUD
Retailer 13$12,529 AUD
Retailer 1$12,898 AUD
Taylor and Hart$16,111 AUD

27 data points across 15 retailers

12 retailers$3,954 AUD to $12,898 AUD

A
Cheapest Retailer
-
$3,954 AUD
HK$21,700 HKD
A
Retailer 2
-
$4,890 AUD
$3,435 USD
View
A
Retailer 3
-
$5,160 AUD
€3,452 EUR
View
B+
Retailer 4
-
$7,538 AUD
$5,295 USD
View
B+
Retailer 5
-
$8,484 AUD
$5,960 USD
View
B+
Retailer 6
-
$9,367 AUD
$6,580 USD
View
Retailer 7
-
$10,734 AUD
ZAR 121,811 ZAR
View
Price last confirmed 24 days ago
Retailer 8
-
$11,612 AUD
$8,157 USD
View
Price last confirmed 25 days ago
Retailer 9
-
$11,875 AUD
£6,568 GBP
View
Price last confirmed 22 days ago
B
Retailer 10
-
$12,529 AUD
$8,801 USD
View
B
Retailer 11
-
$12,898 AUD
$9,060 USD
View
Most Expensive
Taylor and Hart
JQDBQYR · Oct 5
$16,111 AUD
$11,317 USD
View
Price last confirmed 26 days ago
11 more retailers have this diamond
Prices start from $3,954 AUDSave up to $8,944 AUD

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
3.87ct Oval
$3,954 AUD