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Cushion|Lab Grown|IGI

3.51ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG813654337

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

Certificate IGI LG813654337

Diamond specifications and retailer prices

From HK$6,975 HKD
$889 USD
As of November 1, 2026
Save HK$36,968 HKD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$43,944 HKD at Queensmith · As of October 27, 2026
View at Queensmith

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG813654337 or 813654337. Listed at 21 retailers as of October 27, 2026, with prices from HK$6,975 to HK$43,944, a HK$36,968 spread on the same certified stone. Queensmith lists it at HK$43,944. 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

3.51
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813654337
Dimensions8.90 × 8.68 × 5.56 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.90 mm8.68 mm3.51 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813654337
Side View
Table 62.0%Crown 32.9°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 64.1%

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 1
Current: HK$11,083 HKD|Low: HK$6,975 HKD|High: HK$41,114 HKD|Avg: HK$18,187 HKD|-5.3%
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
Retailer 18
Retailer 19
November 3, 2026
Retailer 8HK$6,975 HKD
Retailer 14HK$8,381 HKD
Retailer 3HK$8,709 HKD
Retailer 6HK$10,278 HKD
Retailer 9HK$10,341 HKD
Retailer 17HK$10,957 HKD
Retailer 1HK$11,083 HKD
Retailer 13HK$15,810 HKD
Retailer 19HK$16,315 HKD
Retailer 12HK$16,790 HKD
Retailer 7HK$17,764 HKD
Retailer 4HK$21,035 HKD
Retailer 5HK$22,480 HKD
Retailer 10HK$24,233 HKD
Retailer 11HK$24,981 HKD
Retailer 15HK$27,084 HKD
Retailer 18HK$29,733 HKD
Retailer 2HK$31,267 HKD
Retailer 16HK$41,114 HKD

27 data points across 19 retailers

21 retailersHK$6,975 HKD to HK$43,944 HKD

A
Cheapest Retailer
-
HK$6,975 HKD
$889 USD
Final sale: no returns
Retailer 2
-
HK$7,509 HKD
$957 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
HK$8,381 HKD
£841 GBP
View
A
Retailer 4
-
HK$8,709 HKD
$1,110 USD
View
A
Retailer 5
-
HK$10,278 HKD
$1,310 USD
View
A
Retailer 6
-
HK$10,341 HKD
$1,318 USD
View
A
Retailer 7
-
HK$10,957 HKD
€1,330 EUR
View
A
Retailer 8
-
HK$11,083 HKD
£1,112 GBP
View
B+
Retailer 9
-
HK$15,810 HKD
$2,015 USD
View
B+
Retailer 10
-
HK$16,315 HKD
A$3,199 AUD
View
B+
Retailer 11
-
HK$16,790 HKD
ZAR 34,571 ZAR
View
B+
Retailer 12
-
HK$17,764 HKD
$2,264 USD
View
B+
Retailer 13
-
HK$21,035 HKD
$2,681 USD
View
B
Retailer 14
-
HK$22,480 HKD
£2,256 GBP
View
B
Retailer 15
-
HK$24,233 HKD
$3,088 USD
View
B
Retailer 16
-
HK$24,981 HKD
$3,184 USD
View
B
Retailer 17
-
HK$27,084 HKD
£2,718 GBP
View
B
Retailer 18
-
HK$29,733 HKD
A$5,830 AUD
View
B
Retailer 19
-
HK$31,267 HKD
$3,985 USD
View
B
Retailer 20
-
HK$41,114 HKD
$5,240 USD
View
Most Expensive
B
Queensmith
LG813654337 · Oct 27
HK$43,944 HKD
£4,410 GBP
View
20 more retailers have this diamond
Prices start from HK$6,975 HKDSave up to HK$36,968 HKD

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 Cushion
HK$6,975 HKD