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Heart|Lab Grown|IGI

1.55ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG818653714

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818653714

Diamond specifications and retailer prices

From $391 SGD
$306 USD
As of October 30, 2026
Save $3,227 SGD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,618 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818653714 or 818653714. Listed at 19 retailers as of October 30, 2026, with prices from $391 to $3,618, a $3,227 spread on the same certified stone. Brilliant Earth lists it at $3,618. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818653714
Dimensions7.02 × 7.81 × 4.73 mm
L/W Ratio1.11
Girdle conditionFaceted
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
7.02 mm7.81 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818653714
Side View
Table 60.0%Crown 36.9°Girdle: STK-VTKPavilion 39.3°Culet: NoneDepth 60.6%

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 30
Current: $3,618 SGD|Low: $391 SGD|High: $4,142 SGD|Avg: $1,263 SGD|-12.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 6$391 SGD
Retailer 4$438 SGD
Retailer 3$486 SGD
Retailer 10$486 SGD
Retailer 2$514 SGD
Retailer 16$684 SGD
Retailer 8$791 SGD
Retailer 15$835 SGD
Retailer 12$864 SGD
Retailer 14$1,133 SGD
Retailer 17$1,258 SGD
Retailer 5$1,354 SGD
Retailer 11$1,562 SGD
Retailer 19$1,597 SGD
Retailer 9$1,613 SGD
Retailer 7$1,622 SGD
Retailer 18$1,718 SGD
Retailer 13$1,956 SGD
Brilliant Earth$3,618 SGD

31 data points across 19 retailers

19 retailers$391 SGD to $3,618 SGD

A
Cheapest Retailer
-
$391 SGD
$306 USD
A
Retailer 2
-
$438 SGD
$343 USD
View
Final sale: no returns
A
Retailer 3
-
$486 SGD
$380 USD
View
Retailer 4
-
$486 SGD
$380 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$514 SGD
£316 GBP
View
A
Retailer 6
-
$684 SGD
$535 USD
View
A
Retailer 7
-
$791 SGD
$619 USD
View
A
Retailer 8
-
$835 SGD
ZAR 10,548 ZAR
View
A
Retailer 9
-
$864 SGD
£532 GBP
View
A
Retailer 10
-
$1,133 SGD
A$1,363 AUD
View
A
Retailer 11
-
$1,258 SGD
$984 USD
View
A
Retailer 12
-
$1,354 SGD
$1,059 USD
View
B+
Retailer 13
-
$1,562 SGD
$1,222 USD
View
B+
Retailer 14
-
$1,597 SGD
$1,249 USD
View
B+
Retailer 15
-
$1,613 SGD
View
B+
Retailer 16
-
$1,622 SGD
$1,268 USD
View
B+
Retailer 17
-
$1,718 SGD
$1,344 USD
View
B+
Retailer 18
-
$1,956 SGD
£1,205 GBP
View
Most Expensive
B
Brilliant Earth
21603033A · Oct 31
$3,618 SGD
$2,830 USD
View
18 more retailers have this diamond
Prices start from $391 SGDSave up to $3,227 SGD

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
$391 SGD