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Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG689566199

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG689566199

Diamond specifications and retailer prices

From $403 SGD
As of November 4, 2026
Save $1,591 SGD (80%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $3,291 SGD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant 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 LG689566199 or 689566199. Listed at 29 retailers as of November 4, 2026, with a 395% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle37.9°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689566199
Dimensions8.31 × 5.87 × 3.80 mm
L/W Ratio1.42
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
8.31 mm5.87 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689566199
Side View
Table 62.0%Crown 37.9°Girdle: MediumPavilion 33.2°Culet: NoneDepth 64.7%

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 4
Current: $3,291 SGD|Low: $403 SGD|High: $3,303 SGD|Avg: $1,350 SGD|-0.4%
Rare Carat
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
Retailer 20
Retailer 21
November 5, 2026
Retailer 19$403 SGD
Retailer 13$478 SGD
Retailer 18$572 SGD
Retailer 17$696 SGD
Retailer 21$703 SGD
Retailer 8$813 SGD
Retailer 15$880 SGD
Retailer 12$896 SGD
Retailer 10$1,123 SGD
Retailer 6$1,172 SGD
Retailer 2$1,357 SGD
Retailer 3$1,464 SGD
Retailer 20$1,605 SGD
Retailer 7$1,660 SGD
Retailer 11$1,663 SGD
Retailer 5$1,671 SGD
Retailer 9$1,919 SGD
Retailer 4$1,994 SGD
Retailer 16$1,994 SGD
Retailer 14$2,156 SGD
Rare Carat$3,291 SGD

33 data points across 21 retailers

29 retailers$403 SGD to $1,994 SGD

A
Cheapest Retailer
-
$403 SGD
Retailer 2
-
$419 SGD
View
Price last confirmed 28 days ago
Retailer 3
-
$446 SGD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$478 SGD
View
Final sale: no returns
Retailer 5
-
$518 SGD
View
Price last confirmed 39 days ago
Retailer 6
-
$520 SGD
View
Price last confirmed 33 days ago
Retailer 7
-
$546 SGD
View
Price last confirmed 37 days ago
A
Retailer 8
-
$572 SGD
View
A
Retailer 9
-
$696 SGD
View
A
Retailer 10
-
$703 SGD
View
A
Retailer 11
-
$813 SGD
View
A
Retailer 12
-
$850 SGD
View
A
Retailer 13
-
$880 SGD
View
A
Retailer 14
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$896 SGD
View
A
Retailer 15
-
$1,123 SGD
View
A
Retailer 16
-
$1,172 SGD
View
B+
Retailer 17
-
$1,357 SGD
View
B+
Retailer 18
-
$1,464 SGD
View
B+
Retailer 19
-
$1,605 SGD
View
B+
Retailer 20
-
$1,660 SGD
View
B+
Retailer 21
-
$1,663 SGD
View
Retailer 22
-
$1,671 SGD
View
Price last confirmed 26 days ago
B+
Retailer 23
-
$1,671 SGD
View
Retailer 24
-
$1,778 SGD
View
Price last confirmed 36 days ago
B+
Retailer 25
-
$1,919 SGD
View
B+
Retailer 26
-
$1,994 SGD
View
B+
Retailer 27
-
$1,994 SGD
View
Retailer 28
-
$2,156 SGD
View
Price last confirmed 28 days ago
Most Expensive
Rare Carat
1169-63-s · Oct 28
$3,291 SGD
$2,575 USD
View
Price last confirmed 7 days ago
28 more retailers have this diamond
Prices start from $403 SGDSave up to $1,591 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 Radiant
$403 SGD