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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG806616973

Shape and cutting style on the report: Round brilliant

Certificate IGI LG806616973

Diamond specifications and retailer prices

From $404 USD
As of November 3, 2026
Save $3,996 USD (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,400 USD at Brilliant Earth · As of November 4, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG806616973 or 806616973. Listed at 25 retailers as of November 3, 2026, with prices from $404 to $4,400, a $3,996 spread on the same certified stone. Brilliant Earth lists it at $4,400. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG806616973
Dimensions7.42 × 7.46 × 4.49 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.42 mm7.46 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG806616973
Side View
Table 59.0%Crown 32.9°Girdle: MediumPavilion 41°Culet: NoneDepth 60.3%

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: Nov 3
Current: $1,951 USD|Low: $404 USD|High: $2,228 USD|Avg: $1,082 USD|+2.0%
Retailer 1
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Retailer 23
November 5, 2026
Retailer 23$404 USD
Retailer 16$452 USD
Retailer 11$453 USD
Retailer 3$501 USD
Retailer 14$501 USD
Retailer 15$563 USD
Retailer 18$640 USD
Retailer 22$650 USD
Retailer 2$672 USD
Retailer 5$743 USD
Retailer 19$783 USD
Retailer 12$812 USD
Retailer 20$864 USD
Retailer 6$991 USD
Retailer 21$1,133 USD
Retailer 17$1,168 USD
Retailer 8$1,611 USD
Retailer 10$1,622 USD
Retailer 7$1,646 USD
Retailer 4$1,844 USD
Retailer 9$1,876 USD
Retailer 1$1,951 USD
Retailer 13$2,202 USD

23 data points across 23 retailers

25 retailers$404 USD to $4,400 USD

A
Cheapest Retailer
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$404 USD
A
Retailer 2
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$452 USD
View
Final sale: no returns
A
Retailer 3
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$453 USD
View
A
Retailer 4
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$501 USD
View
Retailer 5
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$501 USD
View
Price last confirmed 11 days ago
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Retailer 6
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$563 USD
View
A
Retailer 7
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$640 USD
View
A
Retailer 8
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$650 USD
View
A
Retailer 9
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$672 USD
View
A
Retailer 10
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$743 USD
View
A
Retailer 11
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$783 USD
View
A
Retailer 12
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$812 USD
View
A
Retailer 13
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$864 USD
View
A
Retailer 14
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$991 USD
View
B+
Retailer 15
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$1,133 USD
View
B+
Retailer 16
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$1,168 USD
View
B+
Retailer 17
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$1,611 USD
View
B+
Retailer 18
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$1,622 USD
View
B+
Retailer 19
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$1,646 USD
View
B+
Retailer 20
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$1,778 USD
View
B+
Retailer 21
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$1,844 USD
View
B
Retailer 22
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$1,876 USD
View
B
Retailer 23
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$1,951 USD
View
B
Retailer 24
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$2,202 USD
View
Most Expensive
B
Brilliant Earth
20205521A · Nov 4
$4,400 USD
View
24 more retailers have this diamond
Prices start from $404 USDSave up to $3,996 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
$404 USD