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Oval|Lab Grown|IGI

1.55ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG788621514

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG788621514

Diamond specifications and retailer prices

From $666 USD
As of October 29, 2026
Save $2,593 USD (80%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $5,470 USD 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788621514 or 788621514. Listed at 24 retailers as of October 26, 2026, with a 389% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788621514
Dimensions9.44 × 6.58 × 4.02 mm
L/W Ratio1.43
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
9.44 mm6.58 mm1.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788621514
Side View
Table 62.0%Crown 33°Girdle: MediumPavilion 41°Culet: NoneDepth 61.1%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $5,470 USD|Low: $639 USD|High: $5,470 USD|Avg: $1,741 USD
Brilliant Earth
Retailer 2
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Retailer 21
October 30, 2026
Retailer 3$666 USD
Retailer 21$725 USD
Retailer 9$745 USD
Retailer 6$773 USD
Retailer 7$773 USD
Retailer 13$876 USD
Retailer 18$955 USD
Retailer 14$1,017 USD
Retailer 11$1,108 USD
Retailer 16$1,195 USD
Retailer 15$1,236 USD
Retailer 20$1,296 USD
Retailer 17$1,420 USD
Retailer 8$1,729 USD
Retailer 5$2,172 USD
Retailer 2$2,497 USD
Retailer 12$2,606 USD
Retailer 10$2,681 USD
Retailer 19$3,259 USD
Retailer 4$4,030 USD
Brilliant Earth$5,470 USD

40 data points across 21 retailers

24 retailers$666 USD to $3,259 USD

A
Cheapest Retailer
-
$666 USD
A
Retailer 2
-
$725 USD
View
A
Retailer 3
-
$745 USD
View
Final sale: no returns
Retailer 4
-
$773 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$773 USD
View
A
Retailer 6
-
$876 USD
£690 GBP
View
A
Retailer 7
-
$955 USD
View
B+
Retailer 8
-
$1,017 USD
View
B+
Retailer 9
-
$1,108 USD
View
B+
Retailer 10
-
$1,182 USD
View
B+
Retailer 11
-
$1,195 USD
A$1,838 AUD
View
B+
Retailer 12
-
$1,236 USD
£973 GBP
View
B+
Retailer 13
-
$1,296 USD
€1,234 EUR
View
B+
Retailer 14
-
$1,420 USD
ZAR 22,941 ZAR
View
B+
Retailer 15
-
$1,729 USD
View
B
Retailer 16
-
$2,172 USD
View
B
Retailer 17
-
$2,408 USD
£1,896 GBP
View
B+
Retailer 18
-
$2,497 USD
View
B
Retailer 19
-
$2,606 USD
SGD 3,521 SGD
View
B
Retailer 20
-
$2,665 USD
View
B
Retailer 21
-
$2,681 USD
View
B
Retailer 22
-
$3,259 USD
£2,566 GBP
View
Retailer 23
-
$4,030 USD
View
Price last confirmed 9 days ago
Most Expensive
Brilliant Earth
20046393A · Oct 29
$5,470 USD
View
Price under review
23 more retailers have this diamond
Prices start from $666 USDSave up to $2,593 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
1.55ct Oval
$666 USD