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Round|Lab Grown|IGI

3.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG600342277

Shape and cutting style on the report: Round brilliant

Certificate IGI LG600342277

Diamond specifications and retailer prices

From $1,036 SGD
$810 USD
As of November 2, 2026
Save $2,455 SGD (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,491 SGD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.51ct lab-grown round diamond

This 3.51ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG600342277 or 600342277. Listed at 14 retailers as of November 2, 2026, with prices from $1,036 to $3,491, a $2,455 spread on the same certified stone. Brilliant Earth lists it at $3,491. 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

3.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600342277
Dimensions9.74 × 9.72 × 6.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.74 mm9.72 mm3.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600342277
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.6%

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: $3,491 SGD|Low: $632 SGD|High: $3,734 SGD|Avg: $1,610 SGD|-6.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4$632 SGD
Retailer 3$890 SGD
Retailer 9$1,036 SGD
Retailer 2$1,069 SGD
Retailer 12$1,156 SGD
Retailer 5$1,223 SGD
Retailer 10$1,239 SGD
Retailer 11$1,645 SGD
Retailer 7$1,990 SGD
Retailer 8$2,424 SGD
Retailer 6$2,719 SGD
Brilliant Earth$3,491 SGD

36 data points across 12 retailers

14 retailers$1,036 SGD to $3,491 SGD

Retailer 1
-
$509 SGD
$398 USD
Price last confirmed 40 days ago
Retailer 2
-
$570 SGD
$446 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$623 SGD
$487 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$1,036 SGD
$810 USD
View
A
Retailer 5
-
$1,069 SGD
€796 EUR
View
B+
Retailer 6
-
$1,156 SGD
$904 USD
View
A
Retailer 7
-
$1,223 SGD
£753 GBP
View
A
Retailer 8
-
$1,239 SGD
$969 USD
View
B+
Retailer 9
-
$1,645 SGD
$1,286 USD
View
B
Retailer 10
-
$1,990 SGD
$1,556 USD
View
Retailer 11
-
$2,030 SGD
$1,587 USD
View
Price last confirmed 36 days ago
B
Retailer 12
-
$2,424 SGD
$1,895 USD
View
B
Retailer 13
-
$2,719 SGD
£1,674 GBP
View
Most Expensive
B
Brilliant Earth
8367372A · Nov 2
$3,491 SGD
$2,730 USD
View
13 more retailers have this diamond
Prices start from $1,036 SGDSave up to $2,455 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
3.51ct Round
$1,036 SGD