CaratHunter
Plans
Cushion|Lab Grown|IGI

2.51ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG812620732

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

Certificate IGI LG812620732

Diamond specifications and retailer prices

From HK$9,493 HKD
$1,210 USD
As of October 31, 2026
Save HK$32,324 HKD (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$41,818 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.51ct lab-grown cushion diamond

This 2.51ct 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 LG812620732 or 812620732. Listed at 18 retailers as of October 30, 2026, with prices from HK$9,493 to HK$41,818, a HK$32,324 spread on the same certified stone. Brilliant Earth lists it at HK$41,818. 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

2.51
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620732
Dimensions8.06 × 7.90 × 5.18 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.06 mm7.90 mm2.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620732
Side View
Table 64.0%Crown 34.8°Girdle: MED-THKPavilion 39.7°Culet: NoneDepth 65.6%

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 31
Current: HK$41,818 HKD|Low: HK$9,493 HKD|High: HK$48,800 HKD|Avg: HK$25,188 HKD|-14.3%
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
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 3HK$9,493 HKD
Retailer 9HK$10,600 HKD
Retailer 12HK$10,984 HKD
Retailer 11HK$14,255 HKD
Retailer 6HK$14,813 HKD
Retailer 2HK$15,669 HKD
Retailer 13HK$18,586 HKD
Retailer 17HK$20,697 HKD
Retailer 7HK$25,142 HKD
Retailer 4HK$25,356 HKD
Retailer 14HK$25,386 HKD
Retailer 18HK$28,496 HKD
Retailer 10HK$29,294 HKD
Retailer 16HK$31,426 HKD
Retailer 15HK$33,549 HKD
Retailer 5HK$34,382 HKD
Retailer 8HK$38,679 HKD
Brilliant EarthHK$41,818 HKD

35 data points across 18 retailers

18 retailersHK$9,493 HKD to HK$41,818 HKD

A
Cheapest Retailer
-
HK$9,493 HKD
$1,210 USD
Final sale: no returns
Retailer 2
-
HK$10,600 HKD
$1,351 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
HK$10,984 HKD
$1,400 USD
View
A
Retailer 4
-
HK$14,255 HKD
£1,431 GBP
View
A
Retailer 5
-
HK$14,813 HKD
$1,888 USD
View
A
Retailer 6
-
HK$15,669 HKD
€1,902 EUR
View
A
Retailer 7
-
HK$18,586 HKD
$2,369 USD
View
A
Retailer 8
-
HK$20,697 HKD
$2,638 USD
View
Retailer 9
-
HK$25,142 HKD
A$4,930 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
HK$25,356 HKD
$3,232 USD
View
A
Retailer 11
-
HK$25,386 HKD
ZAR 52,273 ZAR
View
B+
Retailer 12
-
HK$28,496 HKD
$3,632 USD
View
Retailer 13
-
HK$29,294 HKD
£2,940 GBP
View
Price last confirmed 7 days ago
B+
Retailer 14
-
HK$31,426 HKD
$4,006 USD
View
B+
Retailer 15
-
HK$33,549 HKD
£3,367 GBP
View
B+
Retailer 16
-
HK$34,382 HKD
$4,382 USD
View
Retailer 17
-
HK$38,679 HKD
$4,930 USD
View
Price last confirmed 12 days ago
Most Expensive
B+
Brilliant Earth
20896257A · Oct 30
HK$41,818 HKD
$5,330 USD
View
17 more retailers have this diamond
Prices start from HK$9,493 HKDSave up to HK$32,324 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
2.51ct Cushion
HK$9,493 HKD