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Round|Lab Grown|IGI

11.64ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG616430551

Shape and cutting style on the report: Round brilliant

Certificate IGI LG616430551

Diamond specifications and retailer prices

From $3,279 SGD
£2,020 GBP
As of November 2, 2026
Save $17,137 SGD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $20,416 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 11.64ct lab-grown round diamond

This 11.64ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG616430551 or 616430551. Listed at 18 retailers as of October 31, 2026, with prices from $3,279 to $20,416, a $17,137 spread on the same certified stone. Brilliant Earth lists it at $20,416. 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

11.64
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG616430551
Dimensions14.56 × 14.47 × 8.92 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.56 mm14.47 mm11.64 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG616430551
Side View
Table 58.0%Crown 33.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
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: $20,416 SGD|Low: $3,278 SGD|High: $20,416 SGD|Avg: $6,154 SGD
Brilliant Earth
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
November 2, 2026
Retailer 2$3,279 SGD
Retailer 11$3,521 SGD
Retailer 10$3,830 SGD
Retailer 5$3,941 SGD
Retailer 12$4,083 SGD
Retailer 15$4,084 SGD
Retailer 7$4,627 SGD
Retailer 3$5,337 SGD
Retailer 9$5,494 SGD
Retailer 14$5,613 SGD
Retailer 4$6,355 SGD
Retailer 8$6,500 SGD
Retailer 13$9,318 SGD
Retailer 6$11,388 SGD
Brilliant Earth$20,416 SGD

43 data points across 15 retailers

18 retailers$3,279 SGD to $20,416 SGD

A
Cheapest Retailer
-
$3,279 SGD
£2,020 GBP
A
Retailer 2
-
$3,521 SGD
$2,754 USD
View
A
Retailer 3
-
$3,830 SGD
$2,996 USD
View
A
Retailer 4
-
$3,941 SGD
$3,083 USD
View
Final sale: no returns
A
Retailer 5
-
$4,083 SGD
$3,194 USD
View
Retailer 6
-
$4,083 SGD
$3,194 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$4,084 SGD
$3,195 USD
View
B+
Retailer 8
-
$4,627 SGD
$3,619 USD
View
B+
Retailer 9
-
$5,337 SGD
$4,175 USD
View
B+
Retailer 10
-
$5,494 SGD
£3,384 GBP
View
B+
Retailer 11
-
$5,613 SGD
$4,391 USD
View
B+
Retailer 12
-
$6,355 SGD
$4,971 USD
View
B+
Retailer 13
-
$6,500 SGD
€4,842 EUR
View
Retailer 14
-
$8,332 SGD
$6,517 USD
View
Price last confirmed 53 days ago
B
Retailer 15
-
$9,318 SGD
$7,289 USD
View
B
Retailer 16
-
$11,388 SGD
$8,908 USD
View
B
Retailer 17
-
$14,233 SGD
$11,134 USD
View
Most Expensive
B
Brilliant Earth
20601882A · Oct 31
$20,416 SGD
$15,970 USD
View
17 more retailers have this diamond
Prices start from $3,279 SGDSave up to $17,137 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
11.64ct Round
$3,279 SGD