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Cushion|Lab Grown|IGI

3.09ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG776656912

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG776656912

Diamond specifications and retailer prices

From $1,054 SGD
£649 GBP
As of November 2, 2026
Save $3,057 SGD (74%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,203 SGD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG776656912 or 776656912. Listed at 15 retailers as of November 1, 2026, with a 290% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776656912
Dimensions8.73 × 8.42 × 5.49 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.73 mm8.42 mm3.09 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776656912
Side View
Table 61.0%Crown 34.7°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 65.2%

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 2
Current: $6,203 SGD|Low: $1,054 SGD|High: $6,561 SGD|Avg: $2,663 SGD|-5.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 8$1,054 SGD
Retailer 5$1,453 SGD
Retailer 15$1,454 SGD
Retailer 13$1,458 SGD
Retailer 9$1,481 SGD
Retailer 11$1,575 SGD
Retailer 7$1,625 SGD
Retailer 12$2,000 SGD
Retailer 2$2,055 SGD
Retailer 4$2,748 SGD
Retailer 14$3,021 SGD
Retailer 3$3,042 SGD
Retailer 6$3,660 SGD
Retailer 10$4,111 SGD
Brilliant Earth$6,203 SGD

41 data points across 15 retailers

15 retailers$1,054 SGD to $4,111 SGD

A
Cheapest Retailer
-
$1,054 SGD
£649 GBP
A
Retailer 2
-
$1,453 SGD
$1,136 USD
View
A
Retailer 3
-
$1,454 SGD
$1,137 USD
View
A
Retailer 4
-
$1,458 SGD
$1,140 USD
View
A
Retailer 5
-
$1,481 SGD
£912 GBP
View
A
Retailer 6
-
$1,575 SGD
€1,173 EUR
View
A
Retailer 7
-
$2,000 SGD
A$2,406 AUD
View
A
Retailer 8
-
$2,055 SGD
ZAR 25,965 ZAR
View
B+
Retailer 9
-
$2,660 SGD
$2,080 USD
View
Retailer 10
-
$2,748 SGD
£1,692 GBP
View
Price last confirmed 19 days ago
B+
Retailer 11
-
$3,021 SGD
$2,362 USD
View
B+
Retailer 12
-
$3,042 SGD
View
B
Retailer 13
-
$3,660 SGD
$2,862 USD
View
B
Retailer 14
-
$4,111 SGD
£2,531 GBP
View
Most Expensive
Brilliant Earth
18233605A · Oct 26
$6,203 SGD
$4,850 USD
View
Price last confirmed 7 days ago
14 more retailers have this diamond
Prices start from $1,054 SGDSave up to $3,057 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
3.09ct Cushion
$1,054 SGD