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Cushion|Lab Grown|IGI

3.09ct J VS1 Cushion Lab Grown Diamond

ID • J/VS1 • IGI LG837637492

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG837637492

Diamond specifications and retailer prices

From HK$12,012 HKD
$1,531 USD
As of October 28, 2026
Save HK$33,689 HKD (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$45,700 HKD at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837637492 or 837637492. Listed at 11 retailers as of October 27, 2026, with prices from HK$12,012 to HK$45,700, a HK$33,689 spread on the same certified stone. Taylor and Hart lists it at HK$45,700. 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
J
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837637492
Dimensions11.70 × 7.79 × 4.93 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.70 mm7.79 mm3.09 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837637492
Side View
Table 54.0%Crown 31.8°Girdle: STK-THKPavilion 35.3°Culet: LargeDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: HK$17,316 HKD|Low: HK$10,152 HKD|High: HK$45,700 HKD|Avg: HK$23,407 HKD|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 31, 2026
Retailer 7HK$12,012 HKD
Retailer 2HK$12,553 HKD
Retailer 8HK$12,985 HKD
Retailer 5HK$14,318 HKD
Retailer 4HK$15,534 HKD
Retailer 1HK$17,316 HKD
Retailer 9HK$22,596 HKD
Retailer 6HK$30,041 HKD
Retailer 10HK$36,414 HKD
Retailer 3HK$37,146 HKD
Taylor and HartHK$45,700 HKD

24 data points across 11 retailers

11 retailersHK$12,012 HKD to HK$45,700 HKD

A
Cheapest Retailer
-
HK$12,012 HKD
$1,531 USD
A
Retailer 2
-
HK$12,553 HKD
View
Retailer 3
-
HK$12,985 HKD
$1,655 USD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
HK$14,318 HKD
$1,825 USD
View
A
Retailer 5
-
HK$15,534 HKD
$1,980 USD
View
B+
Retailer 6
-
HK$17,316 HKD
€2,102 EUR
View
Retailer 7
-
HK$22,596 HKD
$2,880 USD
View
Price last confirmed 28 days ago
B
Retailer 8
-
HK$30,041 HKD
ZAR 61,858 ZAR
View
B
Retailer 9
-
HK$36,414 HKD
SGD 6,272 SGD
View
B
Retailer 10
-
HK$37,146 HKD
£3,728 GBP
View
Most Expensive
B
Taylor and Hart
GYQM9ZJ · Oct 27
HK$45,700 HKD
$5,825 USD
View
10 more retailers have this diamond
Prices start from HK$12,012 HKDSave up to HK$33,689 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
3.09ct Cushion
HK$12,012 HKD