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Oval|Lab Grown|IGI

3.55ct D IF Oval Lab Grown Diamond

- • D/IF • IGI LG780661363

Certificate IGI LG780661363

Diamond specifications and retailer prices

From $1,902 USD
Save $16,058 USD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $17,960 USD at Brilliant Earth
View at Brilliant Earth

About this 3.55ct lab-grown oval diamond

This 3.55ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG780661363 or 780661363. Listed at 14 retailers, with prices from $1,902 to $17,960 at Brilliant Earth, a $16,058 spread on the same certified stone. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.55
Carat
D
Color
IF
Clarity
-
Cut

Specifications

Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780661363
Dimensions12.17 × 12.17 × 8.67 mm
L/W Ratio1.00
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
12.17 mm12.17 mm3.55 ctD / IF
OriginLab Grown
Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780661363
Side View
Table 59.0%Crown 33.5°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 60.9%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $17,960 USD|Low: $1,359 USD|High: $17,960 USD|Avg: $5,844 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
October 1, 2026
Retailer 6$1,902 USD
Retailer 18$1,983 USD
Retailer 15$2,020 USD
Retailer 3$2,464 USD
Retailer 4$3,026 USD
Retailer 16$3,163 USD
Retailer 5$3,358 USD
Retailer 10$3,775 USD
Retailer 12$4,618 USD
Retailer 14$5,131 USD
Retailer 13$5,655 USD
Retailer 2$5,903 USD
Retailer 8$6,236 USD
Retailer 7$7,056 USD
Retailer 9$8,697 USD
Retailer 11$9,202 USD
Retailer 17$10,970 USD
Brilliant Earth$17,960 USD

23 data points across 18 retailers

14 retailers$1,902 USD to $17,960 USD

A
Cheapest Retailer
-
$1,902 USD
A
Retailer 2
-
$1,983 USD
View
A
Retailer 3
-
$2,020 USD
View
A
Retailer 4
-
$2,464 USD
View
A
Retailer 5
-
$3,026 USD
View
A
Retailer 6
-
$3,163 USD
€3,012 EUR
View
A
Retailer 7
-
$3,358 USD
View
B+
Retailer 8
-
$4,618 USD
A$7,104 AUD
View
B+
Retailer 9
-
$5,131 USD
View
B+
Retailer 10
-
$5,655 USD
View
B+
Retailer 11
-
$5,903 USD
£4,648 GBP
View
B
Retailer 12
-
$9,202 USD
A$14,157 AUD
View
B
Retailer 13
-
$10,970 USD
View
Most Expensive
B
Brilliant Earth
19020822Y · Oct 1
$17,960 USD
View
13 more retailers have this diamond
Prices start from $1,902 USDSave up to $16,058 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.

A
3.55ct Oval
$1,902 USD