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Cushion|Lab Grown|IGI

2.57ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG790645996

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG790645996

Diamond specifications and retailer prices

From HK$14,390 HKD
$1,834 USD
As of October 28, 2026
Save HK$37,944 HKD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$52,334 HKD at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

About this 2.57ct lab-grown cushion diamond

This 2.57ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790645996 or 790645996. Listed at 16 retailers as of October 27, 2026, with prices from HK$14,390 to HK$52,334, a HK$37,944 spread on the same certified stone. Taylor and Hart lists it at HK$52,334. 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

2.57
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790645996
Dimensions9.85 × 6.95 × 4.48 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.85 mm6.95 mm2.57 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790645996
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 31.1°Culet: NoneDepth 64.5%

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$21,123 HKD|Low: HK$14,390 HKD|High: HK$56,269 HKD|Avg: HK$30,691 HKD|-8.8%
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
Taylor and Hart
October 29, 2026
Retailer 2HK$14,390 HKD
Retailer 3HK$14,908 HKD
Retailer 9HK$15,164 HKD
Retailer 13HK$16,242 HKD
Retailer 5HK$16,901 HKD
Retailer 1HK$21,123 HKD
Retailer 10HK$21,327 HKD
Retailer 4HK$22,998 HKD
Retailer 6HK$30,851 HKD
Retailer 12HK$35,446 HKD
Retailer 8HK$38,460 HKD
Retailer 15HK$40,174 HKD
Retailer 11HK$42,630 HKD
Retailer 14HK$45,364 HKD
Retailer 7HK$49,836 HKD
Taylor and HartHK$52,334 HKD

41 data points across 16 retailers

16 retailersHK$14,390 HKD to HK$52,334 HKD

A
Cheapest Retailer
-
HK$14,390 HKD
$1,834 USD
Final sale: no returns
A
Retailer 2
-
HK$14,908 HKD
$1,900 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
HK$15,164 HKD
£1,522 GBP
View
A
Retailer 4
-
HK$16,242 HKD
$2,070 USD
View
A
Retailer 5
-
HK$16,901 HKD
$2,154 USD
View
A
Retailer 6
-
HK$21,123 HKD
£2,120 GBP
View
A
Retailer 7
-
HK$21,327 HKD
$2,718 USD
View
A
Retailer 8
-
HK$22,998 HKD
$2,931 USD
View
B+
Retailer 9
-
HK$30,851 HKD
£3,096 GBP
View
B+
Retailer 10
-
HK$35,446 HKD
A$6,950 AUD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
HK$38,460 HKD
ZAR 79,185 ZAR
View
B+
Retailer 12
-
HK$40,174 HKD
$5,120 USD
View
B+
Retailer 13
-
HK$42,630 HKD
£4,278 GBP
View
B
Retailer 14
-
HK$45,364 HKD
$5,782 USD
View
B+
Retailer 15
-
HK$49,836 HKD
SGD 8,583 SGD
View
Most Expensive
B
Taylor and Hart
Y9RBHW7 · Oct 27
HK$52,334 HKD
$6,670 USD
View
15 more retailers have this diamond
Prices start from HK$14,390 HKDSave up to HK$37,944 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
2.57ct Cushion
HK$14,390 HKD