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Oval|Lab Grown|IGI

1.55ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG754508368

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754508368

Diamond specifications and retailer prices

From $308 USD
As of October 30, 2026
Save $2,446 USD (89%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $2,754 USD at Blue Nile · As of October 29, 2026
View at Blue Nile

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754508368 or 754508368. Listed at 32 retailers as of October 29, 2026, with prices from $308 to $2,754, a $2,446 spread on the same certified stone. Blue Nile lists it at $2,754. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508368
Dimensions6.63 × 6.63 × 4.08 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
6.63 mm6.63 mm1.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508368
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,754 USD|Low: $276 USD|High: $3,350 USD|Avg: $1,125 USD
Blue Nile
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Retailer 26
October 31, 2026
Retailer 19$276 USD
Retailer 7$308 USD
Retailer 18$321 USD
Retailer 12$486 USD
Retailer 6$502 USD
Retailer 24$505 USD
Retailer 25$586 USD
Retailer 9$587 USD
Retailer 23$611 USD
Retailer 20$629 USD
Retailer 10$720 USD
Retailer 11$798 USD
Retailer 8$819 USD
Retailer 22$827 USD
Retailer 26$991 USD
Retailer 17$1,216 USD
Retailer 3$1,267 USD
Retailer 14$1,310 USD
Retailer 5$1,383 USD
Retailer 15$1,402 USD
Retailer 21$1,434 USD
Retailer 2$1,909 USD
Retailer 4$2,310 USD
Retailer 16$2,420 USD
Retailer 13$2,660 USD
Blue Nile$2,754 USD

41 data points across 26 retailers

32 retailers$308 USD to $2,754 USD

Retailer 1
-
$276 USD
Price last confirmed 32 days ago
Retailer 2
-
$302 USD
View
Price last confirmed 17 days ago
A
Retailer 3
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$308 USD
View
Final sale: no returns
Retailer 4
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$321 USD
View
Price last confirmed 36 days ago
A
Retailer 5
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$322 USD
View
Retailer 6
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$322 USD
View
Price last confirmed 21 days ago
Retailer 7
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$322 USD
View
Price last confirmed 28 days ago
Retailer 8
-
$338 USD
View
Price last confirmed 31 days ago
A
Retailer 9
-
$486 USD
HK$3,800 HKD
View
A
Retailer 10
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$502 USD
View
A
Retailer 11
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$505 USD
View
A
Retailer 12
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$586 USD
€558 EUR
View
A
Retailer 13
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$587 USD
View
A
Retailer 14
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$611 USD
ZAR 9,878 ZAR
View
A
Retailer 15
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$629 USD
£495 GBP
View
A
Retailer 16
-
$720 USD
A$1,108 AUD
View
A
Retailer 17
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$798 USD
View
A
Retailer 18
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$819 USD
View
A
Retailer 19
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$827 USD
A$1,273 AUD
View
B+
Retailer 20
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$991 USD
View
Retailer 21
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$1,144 USD
View
Price last confirmed 21 days ago
Retailer 22
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$1,216 USD
View
Price last confirmed 30 days ago
B+
Retailer 23
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$1,267 USD
View
B+
Retailer 24
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$1,310 USD
View
B+
Retailer 25
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$1,383 USD
View
B+
Retailer 26
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$1,402 USD
SGD 1,894 SGD
View
B+
Retailer 27
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$1,434 USD
£1,129 GBP
View
B+
Retailer 28
-
$1,909 USD
A$2,937 AUD
View
B
Retailer 29
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$2,310 USD
View
Retailer 30
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$2,420 USD
View
Price last confirmed 33 days ago
B
Retailer 31
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$2,660 USD
View
Most Expensive
B
Blue Nile
28930044 · Oct 29
$2,754 USD
View
31 more retailers have this diamond
Prices start from $308 USDSave up to $2,446 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
$308 USD