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Oval|Lab Grown|IGI

1.55ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG727587277

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG727587277

Diamond specifications and retailer prices

From $308 USD
As of October 28, 2026
Save $2,942 USD (91%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $3,250 USD at Brilliant Earth · As of October 28, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG727587277 or 727587277. Listed at 31 retailers as of October 28, 2026, with prices from $308 to $3,250, a $2,942 spread on the same certified stone. Brilliant Earth lists it at $3,250. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727587277
Dimensions9.63 × 6.56 × 4.00 mm
L/W Ratio1.47
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
9.63 mm6.56 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727587277
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.0%

Caratlytics Score

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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 28
Current: $3,250 USD|Low: $291 USD|High: $3,350 USD|Avg: $1,132 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 19
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Retailer 22
October 29, 2026
Retailer 19$308 USD
Retailer 21$475 USD
Retailer 11$486 USD
Retailer 3$502 USD
Retailer 18$586 USD
Retailer 8$587 USD
Retailer 16$611 USD
Retailer 17$625 USD
Retailer 9$720 USD
Retailer 10$798 USD
Retailer 4$819 USD
Retailer 13$827 USD
Retailer 20$991 USD
Retailer 6$1,267 USD
Retailer 12$1,310 USD
Retailer 5$1,383 USD
Retailer 14$1,402 USD
Retailer 2$1,434 USD
Retailer 22$1,931 USD
Retailer 7$2,310 USD
Retailer 15$2,420 USD
Brilliant Earth$3,250 USD

40 data points across 22 retailers

31 retailers$308 USD to $3,250 USD

A
Retailer 1
-
$276 USD
Price last confirmed 30 days ago
A
Retailer 2
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$302 USD
View
Price last confirmed 15 days ago
A
Retailer 3
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$308 USD
View
Final sale: no returns
A
Retailer 4
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$321 USD
View
Price last confirmed 34 days ago
A
Retailer 5
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$322 USD
View
A
Retailer 6
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$322 USD
View
Price last confirmed 19 days ago
A
Retailer 7
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$322 USD
View
Price last confirmed 26 days ago
A
Retailer 8
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$338 USD
View
Price last confirmed 29 days ago
A
Retailer 9
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$475 USD
View
A
Retailer 10
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$486 USD
HK$3,800 HKD
View
A
Retailer 11
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$502 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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$625 USD
£492 GBP
View
A
Retailer 16
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$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
B+
Retailer 21
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$1,144 USD
View
Price last confirmed 19 days ago
B+
Retailer 22
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$1,216 USD
View
Price last confirmed 28 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
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$1,931 USD
A$2,970 AUD
View
Price last confirmed 21 days ago
B
Retailer 29
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$2,310 USD
View
B
Retailer 30
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$2,420 USD
View
Price last confirmed 31 days ago
Most Expensive
B
Brilliant Earth
16223322Y · Oct 28
$3,250 USD
View
30 more retailers have this diamond
Prices start from $308 USDSave up to $2,942 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