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Radiant|Lab Grown|IGI

2.57ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG700540698

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG700540698

Diamond specifications and retailer prices

From HK$6,944 HKD
$885 USD
As of November 2, 2026
Save HK$36,681 HKD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$43,624 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant 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 LG700540698 or 700540698. Listed at 12 retailers as of October 31, 2026, with prices from HK$6,944 to HK$43,624, a HK$36,681 spread on the same certified stone. Brilliant Earth lists it at HK$43,624. 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 angle40.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700540698
Dimensions9.74 × 6.50 × 4.65 mm
L/W Ratio1.50
Culet sizePointed
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
9.74 mm6.50 mm2.57 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700540698
Side View
Table 63.0%Crown 40.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 71.5%

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: Nov 2
Current: HK$43,624 HKD|Low: HK$6,026 HKD|High: HK$45,978 HKD|Avg: HK$21,316 HKD|-3.0%
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
October 31, 2026
Retailer 4HK$6,026 HKD
Retailer 14HK$6,944 HKD
Retailer 3HK$7,250 HKD
Retailer 9HK$9,188 HKD
Retailer 2HK$10,018 HKD
Retailer 11HK$14,868 HKD
Retailer 5HK$16,124 HKD
Retailer 12HK$16,649 HKD
Retailer 8HK$26,197 HKD
Retailer 7HK$27,769 HKD
Retailer 13HK$32,757 HKD
Retailer 6HK$34,888 HKD
Retailer 10HK$42,918 HKD
Brilliant EarthHK$43,624 HKD

18 data points across 14 retailers

12 retailersHK$6,944 HKD to HK$43,624 HKD

A
Cheapest Retailer
-
HK$6,944 HKD
$885 USD
A
Retailer 2
-
HK$7,250 HKD
$924 USD
View
A
Retailer 3
-
HK$9,188 HKD
$1,171 USD
View
A
Retailer 4
-
HK$10,018 HKD
€1,216 EUR
View
Retailer 5
-
HK$14,868 HKD
$1,895 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
HK$16,124 HKD
$2,055 USD
View
A
Retailer 7
-
HK$16,649 HKD
$2,122 USD
View
B+
Retailer 8
-
HK$26,197 HKD
£2,629 GBP
View
B+
Retailer 9
-
HK$27,769 HKD
A$5,445 AUD
View
B+
Retailer 10
-
HK$32,757 HKD
$4,175 USD
View
B
Retailer 11
-
HK$42,918 HKD
$5,470 USD
View
Most Expensive
B
Brilliant Earth
13959243Y · Oct 31
HK$43,624 HKD
$5,560 USD
View
11 more retailers have this diamond
Prices start from HK$6,944 HKDSave up to HK$36,681 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 Radiant
HK$6,944 HKD