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Heart|Lab Grown|IGI

1.55ct D VVS1 Heart Lab Grown Diamond

EX • D/VVS1 • IGI LG631464178

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG631464178

Diamond specifications and retailer prices

From $266 USD
As of November 2, 2026
Save $2,452 USD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,718 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.55ct lab-grown heart diamond

This 1.55ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG631464178 or 631464178. Listed at 23 retailers as of October 27, 2026, with prices from $266 to $2,718, a $2,452 spread on the same certified stone. Queensmith lists it at $2,718. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631464178
Dimensions6.97 × 8.06 × 4.77 mm
L/W Ratio1.16
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
6.97 mm8.06 mm1.55 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631464178
Side View
Table 62.0%Crown 35.1°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 59.2%

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 2
Current: $632 USD|Low: $258 USD|High: $2,040 USD|Avg: $810 USD|+3.2%
Retailer 1
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Retailer 21
November 2, 2026
Retailer 4$266 USD
Retailer 7$297 USD
Retailer 20$308 USD
Retailer 3$330 USD
Retailer 8$330 USD
Retailer 9$445 USD
Retailer 18$490 USD
Retailer 12$568 USD
Retailer 1$632 USD
Retailer 16$642 USD
Retailer 6$668 USD
Retailer 2$710 USD
Retailer 17$766 USD
Retailer 21$837 USD
Retailer 5$1,060 USD
Retailer 13$1,111 USD
Retailer 11$1,269 USD
Retailer 19$1,323 USD
Retailer 10$1,404 USD
Retailer 15$1,659 USD
Retailer 14$2,040 USD

42 data points across 21 retailers

23 retailers$266 USD to $2,718 USD

A
Cheapest Retailer
-
$266 USD
A
Retailer 2
-
$297 USD
View
Final sale: no returns
A
Retailer 3
-
$308 USD
View
A
Retailer 4
-
$330 USD
View
Retailer 5
-
$330 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$445 USD
View
A
Retailer 7
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$490 USD
View
A
Retailer 8
-
$568 USD
ZAR 9,182 ZAR
View
B+
Retailer 9
-
$632 USD
£497 GBP
View
B+
Retailer 10
-
$642 USD
A$988 AUD
View
B+
Retailer 11
-
$668 USD
View
B+
Retailer 12
-
$710 USD
View
B+
Retailer 13
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$766 USD
A$1,179 AUD
View
B+
Retailer 14
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$837 USD
View
B
Retailer 15
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$1,060 USD
View
B
Retailer 16
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$1,068 USD
View
B
Retailer 17
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$1,111 USD
View
Retailer 18
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$1,269 USD
View
Price last confirmed 7 days ago
B+
Retailer 19
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$1,323 USD
£1,042 GBP
View
B
Retailer 20
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$1,404 USD
View
B
Retailer 21
-
$1,659 USD
A$2,552 AUD
View
B
Retailer 22
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$2,040 USD
View
Most Expensive
B
Queensmith
LG631464178 · Oct 27
$2,718 USD
£2,140 GBP
View
22 more retailers have this diamond
Prices start from $266 USDSave up to $2,452 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
1.55ct Heart
$266 USD