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Oval|Lab Grown|IGI

1.78ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG836620561

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836620561

Diamond specifications and retailer prices

From $383 USD
As of October 26, 2026
Save $4,122 USD (91%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,505 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.78ct lab-grown oval diamond

This 1.78ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620561 or 836620561. Listed at 20 retailers as of October 26, 2026, with prices from $383 to $4,505, a $4,122 spread on the same certified stone. Rare Carat lists it at $4,505. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620561
Dimensions10.00 × 6.65 × 4.24 mm
L/W Ratio1.50
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
10.00 mm6.65 mm1.78 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620561
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.8%

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 26
Current: $4,505 USD|Low: $383 USD|High: $4,555 USD|Avg: $1,393 USD|-1.1%
Rare Carat
Retailer 2
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Retailer 20
October 29, 2026
Retailer 20$383 USD
Retailer 17$429 USD
Retailer 4$436 USD
Retailer 8$475 USD
Retailer 16$475 USD
Retailer 14$625 USD
Retailer 18$755 USD
Retailer 13$815 USD
Retailer 9$817 USD
Retailer 2$859 USD
Retailer 19$1,331 USD
Retailer 3$1,394 USD
Retailer 7$1,525 USD
Retailer 5$1,563 USD
Retailer 11$1,634 USD
Retailer 6$1,647 USD
Retailer 15$1,857 USD
Retailer 10$2,221 USD
Retailer 12$3,750 USD
Rare Carat$4,505 USD

28 data points across 20 retailers

20 retailers$383 USD to $4,505 USD

A
Cheapest Retailer
-
$383 USD
A
Retailer 2
-
$429 USD
View
A
Retailer 3
-
$436 USD
View
Final sale: no returns
A
Retailer 4
-
$475 USD
View
A
Retailer 5
-
$475 USD
View
A
Retailer 6
-
$625 USD
View
A
Retailer 7
-
$755 USD
View
A
Retailer 8
-
$815 USD
ZAR 13,174 ZAR
View
A
Retailer 9
-
$817 USD
€778 EUR
View
A
Retailer 10
-
$859 USD
£676 GBP
View
B+
Retailer 11
-
$1,331 USD
View
B+
Retailer 12
-
$1,394 USD
View
B+
Retailer 13
-
$1,525 USD
View
B+
Retailer 14
-
$1,563 USD
View
B+
Retailer 15
-
$1,634 USD
SGD 2,208 SGD
View
B+
Retailer 16
-
$1,647 USD
View
B+
Retailer 17
-
$1,857 USD
£1,462 GBP
View
B+
Retailer 18
-
$2,221 USD
View
B
Retailer 19
-
$3,750 USD
View
Most Expensive
B
Rare Carat
PD-241524 · Oct 28
$4,505 USD
View
19 more retailers have this diamond
Prices start from $383 USDSave up to $4,122 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
1.78ct Oval
$383 USD