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Oval|Lab Grown|IGI

12.05ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG560216123

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG560216123

Diamond specifications and retailer prices

From $2,489 SGD
£1,533 GBP
As of October 27, 2026
Save $19,730 SGD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $22,219 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.05ct lab-grown oval diamond

This 12.05ct lab-grown oval 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 LG560216123 or 560216123. Listed at 11 retailers as of October 27, 2026, with prices from $2,489 to $22,219, a $19,730 spread on the same certified stone. Brilliant Earth lists it at $22,219. 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

12.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG560216123
Dimensions18.33 × 12.92 × 8.19 mm
L/W Ratio1.42
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
18.33 mm12.92 mm12.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG560216123
Side View
Table 59.5%Crown 35.8°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

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: Oct 27
Current: $24,123 SGD|Low: $2,489 SGD|High: $27,461 SGD|Avg: $10,697 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
Retailer 16
November 1, 2026
Retailer 14$2,489 SGD
Retailer 10$3,507 SGD
Retailer 15$4,417 SGD
Retailer 7$4,827 SGD
Retailer 9$5,185 SGD
Retailer 11$5,321 SGD
Retailer 6$5,335 SGD
Retailer 5$6,365 SGD
Retailer 2$7,383 SGD
Retailer 4$7,714 SGD
Retailer 16$9,931 SGD
Retailer 12$13,501 SGD
Retailer 3$14,911 SGD
Retailer 13$16,594 SGD
Brilliant Earth$24,123 SGD
Retailer 8$27,461 SGD

11 data points across 16 retailers

11 retailers$2,489 SGD to $22,219 SGD

A
Cheapest Retailer
-
$2,489 SGD
£1,533 GBP
A
Retailer 2
-
$3,507 SGD
$2,743 USD
View
B+
Retailer 3
-
$4,417 SGD
$3,455 USD
View
B
Retailer 4
-
$5,185 SGD
£3,193 GBP
View
B
Retailer 5
-
$5,321 SGD
$4,162 USD
View
B
Retailer 6
-
$7,714 SGD
$6,034 USD
View
B
Retailer 7
-
$9,931 SGD
$7,768 USD
View
B
Retailer 8
-
$13,501 SGD
$10,561 USD
View
B
Retailer 9
-
$14,911 SGD
$11,664 USD
View
B
Retailer 10
-
$16,594 SGD
$12,980 USD
View
Most Expensive
B
Brilliant Earth
22301436A · Oct 31
$22,219 SGD
$17,380 USD
View
10 more retailers have this diamond
Prices start from $2,489 SGDSave up to $19,730 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
12.05ct Oval
$2,489 SGD