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Cushion|Lab Grown|IGI

4.51ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG839647911

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839647911

Diamond specifications and retailer prices

From $1,096 SGD
HK$6,700 HKD
As of October 31, 2026
Save $3,350 SGD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,446 SGD at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839647911 or 839647911. Listed at 17 retailers as of October 31, 2026, with prices from $1,096 to $4,446, a $3,350 spread on the same certified stone. With Clarity lists it at $4,446. 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

4.51
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647911
Dimensions11.33 × 8.15 × 5.44 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.33 mm8.15 mm4.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647911
Side View
Table 59.0%Crown 34.9°Girdle: MED-THKPavilion 32.9°Culet: NoneDepth 66.7%

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 31
Current: $1,458 SGD|Low: $917 SGD|High: $7,632 SGD|Avg: $2,700 SGD|-3.0%
Retailer 1
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
Retailer 17
With Clarity
October 31, 2026
Retailer 4$917 SGD
Retailer 12$1,096 SGD
Retailer 9$1,149 SGD
Retailer 14$1,170 SGD
Retailer 1$1,458 SGD
Retailer 15$1,553 SGD
Retailer 2$1,794 SGD
Retailer 5$2,003 SGD
Retailer 7$2,091 SGD
Retailer 10$2,191 SGD
Retailer 6$2,961 SGD
Retailer 13$3,167 SGD
Retailer 17$3,169 SGD
Retailer 3$3,278 SGD
Retailer 8$3,656 SGD
Retailer 16$4,007 SGD
Retailer 11$4,040 SGD
With Clarity$4,446 SGD

22 data points across 18 retailers

17 retailers$1,096 SGD to $4,446 SGD

A
Cheapest Retailer
-
$1,096 SGD
HK$6,700 HKD
Retailer 2
-
$1,149 SGD
£708 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
$1,170 SGD
$915 USD
View
A
Retailer 4
-
$1,458 SGD
€1,086 EUR
View
B+
Retailer 5
-
$1,553 SGD
$1,215 USD
View
A
Retailer 6
-
$1,794 SGD
$1,403 USD
View
Retailer 7
-
$2,003 SGD
ZAR 25,314 ZAR
View
Price last confirmed 8 days ago
Retailer 8
-
$2,091 SGD
A$2,516 AUD
View
Price last confirmed 11 days ago
A
Retailer 9
-
$2,191 SGD
$1,714 USD
View
B+
Retailer 10
-
$2,961 SGD
£1,824 GBP
View
B+
Retailer 11
-
$3,167 SGD
View
B+
Retailer 12
-
$3,169 SGD
$2,479 USD
View
B+
Retailer 13
-
$3,278 SGD
$2,565 USD
View
Retailer 14
-
$3,656 SGD
$2,860 USD
View
Price last confirmed 13 days ago
B+
Retailer 15
-
$4,007 SGD
£2,468 GBP
View
B+
Retailer 16
-
$4,040 SGD
$3,160 USD
View
Most Expensive
B+
With Clarity
839647911 · Oct 31
$4,446 SGD
$3,478 USD
View
16 more retailers have this diamond
Prices start from $1,096 SGDSave up to $3,350 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
4.51ct Cushion
$1,096 SGD