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Heart|Lab Grown|IGI

1.27ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG591310918

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG591310918

Diamond specifications and retailer prices

From $187 USD
As of October 27, 2026
Save $1,858 USD (91%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,045 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.27ct lab-grown heart diamond

This 1.27ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG591310918 or 591310918. Listed at 19 retailers as of October 27, 2026, with prices from $187 to $2,045, a $1,858 spread on the same certified stone. Queensmith lists it at $2,045. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591310918
Dimensions6.96 × 7.33 × 4.29 mm
L/W Ratio1.05
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
6.96 mm7.33 mm1.27 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591310918
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 58.5%

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: Oct 27
Current: $421 USD|Low: $187 USD|High: $1,097 USD|Avg: $506 USD|-8.5%
Retailer 1
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 7$187 USD
Retailer 5$209 USD
Retailer 3$217 USD
Retailer 2$232 USD
Retailer 15$232 USD
Retailer 9$395 USD
Retailer 11$399 USD
Retailer 6$408 USD
Retailer 1$421 USD
Retailer 16$470 USD
Retailer 12$566 USD
Retailer 14$746 USD
Retailer 13$749 USD
Retailer 4$800 USD
Retailer 8$830 USD
Retailer 10$1,091 USD

42 data points across 16 retailers

19 retailers$187 USD to $2,045 USD

A
Cheapest Retailer
-
$187 USD
A
Retailer 2
-
$209 USD
View
Final sale: no returns
A
Retailer 3
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$217 USD
View
A
Retailer 4
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$232 USD
View
A
Retailer 5
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$232 USD
View
Retailer 6
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$257 USD
View
Price last confirmed 35 days ago
A
Retailer 7
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$395 USD
€376 EUR
View
A
Retailer 8
-
$399 USD
ZAR 6,438 ZAR
View
A
Retailer 9
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$408 USD
View
A
Retailer 10
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$421 USD
£331 GBP
View
A
Retailer 11
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$470 USD
View
B+
Retailer 12
-
$566 USD
A$871 AUD
View
B+
Retailer 13
-
$588 USD
View
B+
Retailer 14
-
$746 USD
View
Retailer 15
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$749 USD
View
Price last confirmed 10 days ago
B
Retailer 16
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$800 USD
View
B
Retailer 17
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$830 USD
View
B
Retailer 18
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$1,091 USD
£859 GBP
View
Most Expensive
B
Queensmith
LG591310918 · Oct 27
$2,045 USD
£1,610 GBP
View
18 more retailers have this diamond
Prices start from $187 USDSave up to $1,858 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
1.27ct Heart
$187 USD