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Round|Lab Grown|IGI

1.51ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG674507997

Shape and cutting style on the report: Round brilliant

Certificate IGI LG674507997

Diamond specifications and retailer prices

From $385 USD
As of November 1, 2026
Save $2,745 USD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,130 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG674507997 or 674507997. Listed at 24 retailers as of October 31, 2026, with prices from $385 to $3,130, a $2,745 spread on the same certified stone. Brilliant Earth lists it at $3,130. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674507997
Dimensions7.44 × 7.39 × 4.51 mm
L/W Ratio1.01
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
7.44 mm7.39 mm1.51 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674507997
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.8%

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: Nov 1
Current: $3,130 USD|Low: $245 USD|High: $3,130 USD|Avg: $844 USD|+1.3%
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
Retailer 19
November 2, 2026
Retailer 11$245 USD
Retailer 5$385 USD
Retailer 18$400 USD
Retailer 9$425 USD
Retailer 13$607 USD
Retailer 14$645 USD
Retailer 6$676 USD
Retailer 17$683 USD
Retailer 19$688 USD
Retailer 8$730 USD
Retailer 2$766 USD
Retailer 16$870 USD
Retailer 7$986 USD
Retailer 15$1,064 USD
Retailer 4$1,417 USD
Retailer 10$1,605 USD
Retailer 3$1,656 USD
Retailer 12$1,671 USD
Brilliant Earth$3,130 USD

28 data points across 19 retailers

24 retailers$385 USD to $3,130 USD

Retailer 1
-
$245 USD
Price last confirmed 14 days ago
Retailer 2
-
$329 USD
View
Price last confirmed 25 days ago
A
Retailer 3
-
$385 USD
View
Final sale: no returns
Retailer 4
-
$397 USD
View
Price last confirmed 23 days ago
A
Retailer 5
-
$400 USD
View
Retailer 6
-
$425 USD
View
Price last confirmed 30 days ago
Retailer 7
-
$425 USD
View
Price last confirmed 7 days ago
A
Retailer 8
-
$607 USD
£478 GBP
View
A
Retailer 9
-
$645 USD
View
A
Retailer 10
-
$676 USD
€644 EUR
View
A
Retailer 11
-
$683 USD
View
A
Retailer 12
-
$688 USD
View
A
Retailer 13
-
$730 USD
ZAR 11,792 ZAR
View
B+
Retailer 14
-
$766 USD
£603 GBP
View
B+
Retailer 15
-
$870 USD
View
B+
Retailer 16
-
$986 USD
A$1,517 AUD
View
B+
Retailer 17
-
$1,064 USD
View
Retailer 18
-
$1,365 USD
View
Price last confirmed 25 days ago
B
Retailer 19
-
$1,417 USD
View
B
Retailer 20
-
$1,605 USD
View
B
Retailer 21
-
$1,656 USD
View
B
Retailer 22
-
$1,671 USD
£1,316 GBP
View
Retailer 23
-
$1,994 USD
View
Price last confirmed 67 days ago
Most Expensive
B
Brilliant Earth
14081461A · Oct 31
$3,130 USD
View
23 more retailers have this diamond
Prices start from $385 USDSave up to $2,745 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
1.51ct Round
$385 USD