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Radiant|Lab Grown|IGI

2.51ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG833607629

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

Certificate IGI LG833607629

Diamond specifications and retailer prices

From HK$2,377 HKD
$303 USD
As of November 2, 2026
Save HK$13,942 HKD (85%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$16,319 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.51ct lab-grown radiant diamond

This 2.51ct lab-grown radiant sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG833607629 or 833607629. Listed at 9 retailers as of October 31, 2026, with prices from HK$2,377 to HK$16,319, a HK$13,942 spread on the same certified stone. Brilliant Earth lists it at HK$16,319. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833607629
Dimensions9.19 × 6.79 × 4.74 mm
L/W Ratio1.35
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.19 mm6.79 mm2.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833607629
Side View
Table 64.0%Crown 40.3°Girdle: MediumPavilion 36.9°Culet: NoneDepth 69.8%

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$16,319 HKD|Low: HK$2,283 HKD|High: HK$16,790 HKD|Avg: HK$8,078 HKD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7HK$2,377 HKD
Retailer 2HK$3,640 HKD
Retailer 4HK$4,762 HKD
Retailer 6HK$9,054 HKD
Retailer 5HK$9,062 HKD
Retailer 3HK$11,807 HKD
Brilliant EarthHK$16,319 HKD

29 data points across 7 retailers

9 retailersHK$2,377 HKD to HK$16,319 HKD

A
Cheapest Retailer
-
HK$2,377 HKD
$303 USD
A
Retailer 2
-
HK$2,754 HKD
$351 USD
View
A
Retailer 3
-
HK$3,640 HKD
£365 GBP
View
A
Retailer 4
-
HK$4,762 HKD
€578 EUR
View
B+
Retailer 5
-
HK$9,054 HKD
$1,154 USD
View
B+
Retailer 6
-
HK$9,062 HKD
$1,155 USD
View
B+
Retailer 7
-
HK$9,470 HKD
$1,207 USD
View
B+
Retailer 8
-
HK$11,807 HKD
£1,185 GBP
View
Most Expensive
B
Brilliant Earth
21252513A · Oct 31
HK$16,319 HKD
$2,080 USD
View
8 more retailers have this diamond
Prices start from HK$2,377 HKDSave up to HK$13,942 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 Radiant
HK$2,377 HKD