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Heart|Lab Grown|IGI

1.66ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG825660136

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825660136

Diamond specifications and retailer prices

From $902 SGD
$705 USD
As of November 2, 2026
Save $5,076 SGD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,978 SGD at With Clarity · As of November 2, 2026
View at With Clarity

About this 1.66ct lab-grown heart diamond

This 1.66ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825660136 or 825660136. Listed at 19 retailers as of November 2, 2026, with prices from $902 to $5,978, a $5,076 spread on the same certified stone. With Clarity lists it at $5,978. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825660136
Dimensions8.05 × 7.24 × 4.93 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
8.05 mm7.24 mm1.66 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825660136
Side View
Table 64.0%Crown 35°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.2%

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: $1,948 SGD|Low: $902 SGD|High: $6,791 SGD|Avg: $2,638 SGD|-19.5%
Retailer 1
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
With Clarity
November 2, 2026
Retailer 12$902 SGD
Retailer 6$994 SGD
Retailer 3$1,060 SGD
Retailer 8$1,101 SGD
Retailer 9$1,173 SGD
Retailer 17$1,285 SGD
Retailer 7$1,374 SGD
Retailer 13$1,700 SGD
Retailer 5$1,710 SGD
Retailer 18$1,721 SGD
Retailer 1$1,948 SGD
Retailer 11$2,408 SGD
Retailer 4$2,980 SGD
Retailer 16$3,500 SGD
Retailer 2$3,654 SGD
Retailer 15$4,184 SGD
Retailer 10$4,202 SGD
Retailer 14$5,103 SGD
With Clarity$5,978 SGD

37 data points across 19 retailers

19 retailers$902 SGD to $5,978 SGD

A
Cheapest Retailer
-
$902 SGD
$705 USD
A
Retailer 2
-
$994 SGD
$777 USD
View
A
Retailer 3
-
$1,060 SGD
$829 USD
View
Retailer 4
-
$1,101 SGD
$861 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$1,173 SGD
$917 USD
View
Final sale: no returns
A
Retailer 6
-
$1,285 SGD
$1,005 USD
View
A
Retailer 7
-
$1,374 SGD
$1,074 USD
View
B+
Retailer 8
-
$1,700 SGD
£1,047 GBP
View
B+
Retailer 9
-
$1,710 SGD
$1,337 USD
View
B+
Retailer 10
-
$1,721 SGD
$1,346 USD
View
B+
Retailer 11
-
$1,948 SGD
ZAR 24,602 ZAR
View
B+
Retailer 12
-
$2,408 SGD
$1,883 USD
View
B+
Retailer 13
-
$2,980 SGD
$2,330 USD
View
B+
Retailer 14
-
$3,500 SGD
$2,737 USD
View
B
Retailer 15
-
$3,654 SGD
$2,857 USD
View
B
Retailer 16
-
$4,184 SGD
£2,576 GBP
View
B
Retailer 17
-
$4,202 SGD
View
B
Retailer 18
-
$5,103 SGD
$3,990 USD
View
Most Expensive
B
With Clarity
825660136 · Nov 2
$5,978 SGD
$4,674 USD
View
18 more retailers have this diamond
Prices start from $902 SGDSave up to $5,076 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
1.66ct Heart
$902 SGD