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Round|Lab Grown|IGI

1.51ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG770669393

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770669393

Diamond specifications and retailer prices

From $285 SGD
As of November 5, 2026
Save $1,273 SGD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,558 SGD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770669393 or 770669393. Listed at 15 retailers as of November 5, 2026, with prices from $285 to $1,558, a $1,273 spread on the same certified stone. Brilliant Earth lists it at $1,558. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770669393
Dimensions7.35 × 7.30 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.35 mm7.30 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770669393
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.2%

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 5
Current: $1,558 SGD|Low: $273 SGD|High: $1,558 SGD|Avg: $788 SGD|+0.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$285 SGD
Retailer 11$353 SGD
Retailer 9$473 SGD
Retailer 5$545 SGD
Retailer 7$594 SGD
Retailer 2$648 SGD
Retailer 3$771 SGD
Retailer 4$964 SGD
Retailer 6$977 SGD
Retailer 8$1,414 SGD
Brilliant Earth$1,558 SGD

44 data points across 11 retailers

15 retailers$285 SGD to $1,558 SGD

A
Cheapest Retailer
-
$285 SGD
A
Retailer 2
-
$330 SGD
View
Retailer 3
-
$353 SGD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$353 SGD
View
B+
Retailer 5
-
$473 SGD
View
A
Retailer 6
-
$545 SGD
View
A
Retailer 7
-
$571 SGD
View
A
Retailer 8
-
$594 SGD
View
A
Retailer 9
-
$648 SGD
View
B+
Retailer 10
-
$771 SGD
View
B
Retailer 11
-
$964 SGD
View
B+
Retailer 12
-
$977 SGD
View
B
Retailer 13
-
$1,133 SGD
View
Retailer 14
-
$1,414 SGD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
20482981A · Nov 5
$1,558 SGD
$1,220 USD
View
14 more retailers have this diamond
Prices start from $285 SGDSave up to $1,273 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
$285 SGD