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Round|Lab Grown|IGI

1.51ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG759506912

Shape and cutting style on the report: Round brilliant

Certificate IGI LG759506912

Diamond specifications and retailer prices

From $224 USD
As of November 5, 2026
Save $1,045 USD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,269 USD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG759506912 or 759506912. Listed at 22 retailers as of November 5, 2026, with prices from $224 to $1,269, a $1,045 spread on the same certified stone. Reve Diamonds lists it at $1,269. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG759506912
Dimensions7.48 × 7.45 × 4.46 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.48 mm7.45 mm1.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG759506912
Side View
Table 61.0%Crown 32.8°Girdle: THN-MEDPavilion 41.3°Culet: NoneDepth 59.7%

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 5
Current: $254 USD|Low: $222 USD|High: $1,269 USD|Avg: $581 USD|+2.4%
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Retailer 18
Reve Diamonds
November 6, 2026
Retailer 9$224 USD
Retailer 1$254 USD
Retailer 18$260 USD
Retailer 5$277 USD
Retailer 6$277 USD
Retailer 3$435 USD
Retailer 7$473 USD
Retailer 11$480 USD
Retailer 12$506 USD
Retailer 14$510 USD
Retailer 4$531 USD
Retailer 2$577 USD
Retailer 16$730 USD
Retailer 13$880 USD
Retailer 10$892 USD
Retailer 17$895 USD
Retailer 8$944 USD
Retailer 15$1,108 USD
Reve Diamonds$1,269 USD

31 data points across 19 retailers

22 retailers$224 USD to $1,269 USD

A
Cheapest Retailer
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$224 USD
A
Retailer 2
-
$254 USD
View
Final sale: no returns
A
Retailer 3
-
$260 USD
View
Retailer 4
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$277 USD
View
Price last confirmed 12 days ago
A
Retailer 5
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$277 USD
View
A
Retailer 6
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$435 USD
View
B+
Retailer 7
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$473 USD
View
A
Retailer 8
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$480 USD
View
A
Retailer 9
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$506 USD
View
B+
Retailer 10
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$510 USD
View
B+
Retailer 11
-
$531 USD
View
B+
Retailer 12
-
$577 USD
View
B
Retailer 13
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$730 USD
View
B
Retailer 14
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$771 USD
View
B
Retailer 15
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$880 USD
View
B
Retailer 16
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$880 USD
View
Retailer 17
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$884 USD
View
Price last confirmed 46 days ago
B
Retailer 18
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$892 USD
View
B
Retailer 19
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$895 USD
View
B
Retailer 20
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$944 USD
View
B
Retailer 21
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$1,108 USD
View
Most Expensive
B
Reve Diamonds
70B9D45A9 · Nov 6
$1,269 USD
View
21 more retailers have this diamond
Prices start from $224 USDSave up to $1,045 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
$224 USD