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Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG749570657

Shape and cutting style on the report: Round brilliant

Certificate IGI LG749570657

Diamond specifications and retailer prices

From $234 USD
As of October 29, 2026
Save $1,068 USD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,302 USD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG749570657 or 749570657. Listed at 22 retailers as of October 28, 2026, with prices from $234 to $1,302, a $1,068 spread on the same certified stone. Reve Diamonds lists it at $1,302. 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

1.50
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749570657
Dimensions7.35 × 7.29 × 4.53 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
7.35 mm7.29 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749570657
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.0%

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: Oct 29
Current: $544 USD|Low: $223 USD|High: $1,302 USD|Avg: $590 USD|+7.1%
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Retailer 18
Reve Diamonds
October 29, 2026
Retailer 7$234 USD
Retailer 11$262 USD
Retailer 15$271 USD
Retailer 10$287 USD
Retailer 4$290 USD
Retailer 17$431 USD
Retailer 5$491 USD
Retailer 18$503 USD
Retailer 12$504 USD
Retailer 2$541 USD
Retailer 1$544 USD
Retailer 16$577 USD
Retailer 14$758 USD
Retailer 9$760 USD
Retailer 8$932 USD
Retailer 6$984 USD
Retailer 3$1,080 USD
Retailer 13$1,168 USD
Reve Diamonds$1,302 USD

37 data points across 19 retailers

22 retailers$234 USD to $1,302 USD

A
Cheapest Retailer
-
$234 USD
A
Retailer 2
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$262 USD
View
Final sale: no returns
A
Retailer 3
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$271 USD
View
A
Retailer 4
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$287 USD
View
Price last confirmed 17 days ago
A
Retailer 5
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$290 USD
View
A
Retailer 6
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$431 USD
View
B+
Retailer 7
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$491 USD
View
B+
Retailer 8
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$503 USD
£396 GBP
View
Price last confirmed 12 days ago
A
Retailer 9
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$504 USD
€480 EUR
View
B+
Retailer 10
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$541 USD
View
B+
Retailer 11
-
$544 USD
£429 GBP
View
B+
Retailer 12
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$577 USD
A$888 AUD
View
B+
Retailer 13
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$758 USD
View
B
Retailer 14
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$760 USD
View
B
Retailer 15
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$924 USD
View
Price last confirmed 38 days ago
B
Retailer 16
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$932 USD
View
B
Retailer 17
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$935 USD
View
Price last confirmed 8 days ago
B
Retailer 18
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$984 USD
View
B
Retailer 19
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$1,030 USD
View
B
Retailer 20
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$1,080 USD
View
Price last confirmed 8 days ago
B
Retailer 21
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$1,168 USD
£920 GBP
View
Most Expensive
B
Reve Diamonds
A2967E34E · Oct 28
$1,302 USD
View
21 more retailers have this diamond
Prices start from $234 USDSave up to $1,068 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
1.50ct Round
$234 USD