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Oval|Lab Grown|IGI

1.91ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG677555777

Certificate IGI LG677555777

Diamond specifications and retailer prices

From $451 USD
Save $5,969 USD (93%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $6,420 USD at Brilliant Earth
View at Brilliant Earth

About this 1.91ct lab-grown oval diamond

This 1.91ct 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 LG677555777 or 677555777. Listed at 26 retailers, with prices from $451 to $6,420 at Brilliant Earth, a $5,969 spread on the same certified stone. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677555777
Dimensions10.07 × 7.18 × 4.37 mm
L/W Ratio1.40
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
10.07 mm7.18 mm1.91 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677555777
Side View
Table 59.0%Crown 33.8°Girdle: MED-STKPavilion 41.2°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: Sep 28
Current: $6,420 USD|Low: $359 USD|High: $6,420 USD|Avg: $1,824 USD
Brilliant Earth
Retailer 2
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Retailer 24
October 1, 2026
Retailer 6$451 USD
Retailer 9$504 USD
Retailer 23$505 USD
Retailer 8$552 USD
Retailer 11$559 USD
Retailer 2$810 USD
Retailer 5$812 USD
Retailer 10$845 USD
Retailer 13$917 USD
Retailer 21$941 USD
Retailer 24$942 USD
Retailer 20$1,306 USD
Retailer 12$1,387 USD
Retailer 16$1,596 USD
Retailer 3$1,631 USD
Retailer 4$1,774 USD
Retailer 22$1,797 USD
Retailer 15$1,829 USD
Retailer 17$1,994 USD
Retailer 18$2,078 USD
Retailer 7$2,289 USD
Retailer 14$3,556 USD
Retailer 19$3,820 USD
Brilliant Earth$6,420 USD

40 data points across 24 retailers

26 retailers$451 USD to $6,420 USD

A
Cheapest Retailer
-
$451 USD
A
Retailer 2
-
$504 USD
View
A
Retailer 3
-
$505 USD
View
A
Retailer 4
-
$552 USD
View
A
Retailer 5
-
$559 USD
View
A
Retailer 6
-
$614 USD
HK$4,800 HKD
View
A
Retailer 7
-
$810 USD
View
A
Retailer 8
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$812 USD
View
A
Retailer 9
-
$845 USD
View
A
Retailer 10
-
$920 USD
£724 GBP
View
A
Retailer 11
-
$941 USD
ZAR 15,198 ZAR
View
A
Retailer 12
-
$942 USD
€897 EUR
View
B+
Retailer 13
-
$1,306 USD
A$2,009 AUD
View
B+
Retailer 14
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$1,387 USD
View
B+
Retailer 15
-
$1,596 USD
View
B+
Retailer 16
-
$1,631 USD
£1,284 GBP
View
B+
Retailer 17
-
$1,774 USD
SGD 2,397 SGD
View
B+
Retailer 18
-
$1,797 USD
View
B+
Retailer 19
-
$1,829 USD
View
B+
Retailer 20
-
$1,994 USD
View
B
Retailer 21
-
$2,073 USD
View
B+
Retailer 22
-
$2,078 USD
£1,636 GBP
View
B
Retailer 23
-
$2,289 USD
View
B
Retailer 24
-
$3,556 USD
£2,800 GBP
View
B
Retailer 25
-
$3,820 USD
View
Most Expensive
B
Brilliant Earth
12917302A · Sep 29
$6,420 USD
View
25 more retailers have this diamond
Prices start from $451 USDSave up to $5,969 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
1.91ct Oval
$451 USD