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Round|Lab Grown|IGI

1.51ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG455006167

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455006167

Diamond specifications and retailer prices

From $418 SGD
$327 USD
As of November 1, 2026
Save $3,302 SGD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,720 SGD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455006167 or 455006167. Listed at 19 retailers as of October 31, 2026, with prices from $418 to $3,720, a $3,302 spread on the same certified stone. Do Amore Diamonds lists it at $3,720. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455006167
Dimensions7.31 × 7.37 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
7.31 mm7.37 mm1.51 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455006167
Side View
Table 58.5%Crown 35.5°Girdle: MediumPavilion 41.5°Culet: NoneDepth 62.3%

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 1
Current: $3,720 SGD|Low: $418 SGD|High: $3,720 SGD|Avg: $1,232 SGD|+0.3%
Do Amore Diamonds
Retailer 2
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Retailer 7
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
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Retailer 19
November 1, 2026
Retailer 19$418 SGD
Retailer 16$486 SGD
Retailer 14$511 SGD
Retailer 6$519 SGD
Retailer 15$519 SGD
Retailer 3$597 SGD
Retailer 7$716 SGD
Retailer 8$850 SGD
Retailer 10$892 SGD
Retailer 13$924 SGD
Retailer 17$943 SGD
Retailer 11$1,031 SGD
Retailer 18$1,521 SGD
Retailer 9$1,560 SGD
Retailer 2$1,624 SGD
Retailer 5$1,841 SGD
Retailer 4$2,041 SGD
Retailer 12$2,237 SGD
Do Amore Diamonds$3,720 SGD

15 data points across 19 retailers

19 retailers$418 SGD to $3,720 SGD

A
Cheapest Retailer
-
$418 SGD
$327 USD
A
Retailer 2
-
$486 SGD
$380 USD
View
B+
Retailer 3
-
$511 SGD
$400 USD
View
Retailer 4
-
$519 SGD
$406 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$519 SGD
$406 USD
View
A
Retailer 6
-
$597 SGD
$467 USD
View
A
Retailer 7
-
$716 SGD
$560 USD
View
Retailer 8
-
$850 SGD
$665 USD
View
Price last confirmed 11 days ago
A
Retailer 9
-
$892 SGD
$698 USD
View
A
Retailer 10
-
$924 SGD
£569 GBP
View
A
Retailer 11
-
$943 SGD
$738 USD
View
A
Retailer 12
-
$1,031 SGD
$807 USD
View
A
Retailer 13
-
$1,521 SGD
$1,190 USD
View
A
Retailer 14
-
$1,560 SGD
$1,220 USD
View
B+
Retailer 15
-
$1,624 SGD
$1,270 USD
View
B+
Retailer 16
-
$1,841 SGD
$1,440 USD
View
B+
Retailer 17
-
$2,041 SGD
$1,597 USD
View
B+
Retailer 18
-
$2,237 SGD
£1,378 GBP
View
Most Expensive
B
Do Amore Diamonds
27-52299484A · Oct 31
$3,720 SGD
$2,910 USD
View
18 more retailers have this diamond
Prices start from $418 SGDSave up to $3,302 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
1.51ct Round
$418 SGD