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Round|Lab Grown|IGI

1.55ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG768651128

Shape and cutting style on the report: Round brilliant

Certificate IGI LG768651128

Diamond specifications and retailer prices

From $424 SGD
$332 USD
As of October 29, 2026
Save $3,294 SGD (89%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $3,718 SGD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round 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 LG768651128 or 768651128. Listed at 27 retailers as of October 27, 2026, with prices from $424 to $3,718, a $3,294 spread on the same certified stone. Queensmith lists it at $3,718. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768651128
Dimensions7.35 × 7.39 × 4.60 mm
L/W Ratio1.01
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
7.35 mm7.39 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768651128
Side View
Table 56.0%Crown 36°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $904 SGD|Low: $408 SGD|High: $5,114 SGD|Avg: $1,334 SGD
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
October 31, 2026
Retailer 4$424 SGD
Retailer 2$482 SGD
Retailer 6$527 SGD
Retailer 7$710 SGD
Retailer 15$722 SGD
Retailer 12$840 SGD
Retailer 1$904 SGD
Retailer 14$905 SGD
Retailer 10$940 SGD
Retailer 8$1,227 SGD
Retailer 13$1,227 SGD
Retailer 3$1,849 SGD
Retailer 11$2,122 SGD
Retailer 5$2,249 SGD
Retailer 9$3,324 SGD

34 data points across 15 retailers

27 retailers$424 SGD to $3,718 SGD

A
Cheapest Retailer
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$424 SGD
$332 USD
A
Retailer 2
-
$482 SGD
$377 USD
View
Final sale: no returns
A
Retailer 3
-
$492 SGD
$385 USD
View
A
Retailer 4
-
$527 SGD
$412 USD
View
A
Retailer 5
-
$527 SGD
$412 USD
View
A
Retailer 6
-
$589 SGD
HK$3,600 HKD
View
A
Retailer 7
-
$710 SGD
$555 USD
View
A
Retailer 8
-
$722 SGD
$565 USD
View
A
Retailer 9
-
$840 SGD
€626 EUR
View
A
Retailer 10
-
$904 SGD
A$1,088 AUD
View
A
Retailer 11
-
$905 SGD
ZAR 11,435 ZAR
View
A
Retailer 12
-
$940 SGD
£579 GBP
View
A
Retailer 13
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$952 SGD
$745 USD
View
A
Retailer 14
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$1,227 SGD
$960 USD
View
A
Retailer 15
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$1,227 SGD
A$1,477 AUD
View
B+
Retailer 16
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$1,292 SGD
$1,011 USD
View
Retailer 17
-
$1,436 SGD
$1,123 USD
View
Price last confirmed 44 days ago
B+
Retailer 18
-
$1,688 SGD
View
B+
Retailer 19
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$1,693 SGD
$1,324 USD
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B+
Retailer 20
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$1,749 SGD
$1,368 USD
View
B+
Retailer 21
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$1,792 SGD
$1,402 USD
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B+
Retailer 22
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$1,849 SGD
$1,446 USD
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B+
Retailer 23
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$2,065 SGD
$1,615 USD
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B+
Retailer 24
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$2,122 SGD
£1,307 GBP
View
Retailer 25
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$2,249 SGD
A$2,706 AUD
View
Price last confirmed 22 days ago
B
Retailer 26
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$3,324 SGD
$2,600 USD
View
Most Expensive
B
Queensmith
LG768651128 · Oct 27
$3,718 SGD
£2,290 GBP
View
26 more retailers have this diamond
Prices start from $424 SGDSave up to $3,294 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 Round
$424 SGD