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Oval|Lab Grown|IGI

1.55ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG778639794

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG778639794

Diamond specifications and retailer prices

From $789 AUD
$554 USD
As of October 29, 2026
Save $5,660 AUD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,449 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.55ct lab-grown oval diamond

This 1.55ct 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 LG778639794 or 778639794. Listed at 24 retailers as of October 29, 2026, with prices from $789 to $6,449, a $5,660 spread on the same certified stone. Brilliant Earth lists it at $6,449. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778639794
Dimensions9.23 × 6.54 × 4.09 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.23 mm6.54 mm1.55 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778639794
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.5%

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 29
Current: $6,449 AUD|Low: $757 AUD|High: $6,449 AUD|Avg: $2,377 AUD
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
Retailer 20
October 30, 2026
Retailer 3$789 AUD
Retailer 5$884 AUD
Retailer 16$938 AUD
Retailer 7$978 AUD
Retailer 15$1,167 AUD
Retailer 11$1,288 AUD
Retailer 12$1,512 AUD
Retailer 13$1,526 AUD
Retailer 19$1,549 AUD
Retailer 9$1,640 AUD
Retailer 14$1,682 AUD
Retailer 20$2,198 AUD
Retailer 10$2,574 AUD
Retailer 8$2,842 AUD
Retailer 6$3,174 AUD
Retailer 2$3,424 AUD
Retailer 4$3,585 AUD
Retailer 17$4,254 AUD
Retailer 18$5,339 AUD
Brilliant Earth$6,449 AUD

34 data points across 20 retailers

24 retailers$789 AUD to $6,449 AUD

A
Cheapest Retailer
-
$789 AUD
$554 USD
A
Retailer 2
-
$884 AUD
$621 USD
View
A
Retailer 3
-
$938 AUD
$659 USD
View
Final sale: no returns
A
Retailer 4
-
$978 AUD
$687 USD
View
Retailer 5
-
$978 AUD
$687 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$1,167 AUD
$820 USD
View
A
Retailer 7
-
$1,288 AUD
$905 USD
View
A
Retailer 8
-
$1,512 AUD
$1,062 USD
View
A
Retailer 9
-
$1,526 AUD
£844 GBP
View
Retailer 10
-
$1,549 AUD
€1,036 EUR
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$1,640 AUD
$1,152 USD
View
B+
Retailer 12
-
$1,682 AUD
ZAR 19,088 ZAR
View
B+
Retailer 13
-
$2,198 AUD
$1,544 USD
View
B+
Retailer 14
-
$2,574 AUD
$1,808 USD
View
Retailer 15
-
$2,585 AUD
$1,816 USD
View
Price last confirmed 44 days ago
B+
Retailer 16
-
$2,842 AUD
£1,572 GBP
View
B+
Retailer 17
-
$3,174 AUD
$2,230 USD
View
B+
Retailer 18
-
$3,286 AUD
$2,308 USD
View
B
Retailer 19
-
$3,420 AUD
SGD 3,246 SGD
View
B
Retailer 20
-
$3,424 AUD
$2,405 USD
View
B
Retailer 21
-
$3,585 AUD
$2,518 USD
View
B
Retailer 22
-
$4,254 AUD
£2,353 GBP
View
B
Retailer 23
-
$5,339 AUD
$3,750 USD
View
Most Expensive
B
Brilliant Earth
21417346A · Oct 29
$6,449 AUD
$4,530 USD
View
23 more retailers have this diamond
Prices start from $789 AUDSave up to $5,660 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
1.55ct Oval
$789 AUD