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Oval|Lab Grown|IGI

2.55ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG843606127

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843606127

Diamond specifications and retailer prices

From HK$4,613 HKD
$588 USD
As of October 30, 2026
Save HK$20,258 HKD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$28,245 HKD at Brilliant Earth · As of October 20, 2026
View at Brilliant Earth

About this 2.55ct lab-grown oval diamond

This 2.55ct lab-grown oval sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG843606127 or 843606127. Listed at 14 retailers as of October 30, 2026, with a 439% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.55
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843606127
Dimensions11.28 × 7.67 × 4.78 mm
L/W Ratio1.47
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm7.67 mm2.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843606127
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.3%

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 30
Current: HK$4,668 HKD|Low: HK$3,178 HKD|High: HK$24,871 HKD|Avg: HK$8,251 HKD|+2.6%
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
October 31, 2026
Retailer 4HK$3,178 HKD
Retailer 10HK$4,613 HKD
Retailer 1HK$4,668 HKD
Retailer 6HK$4,704 HKD
Retailer 3HK$5,346 HKD
Retailer 2HK$5,970 HKD
Retailer 12HK$6,096 HKD
Retailer 9HK$10,176 HKD
Retailer 8HK$10,529 HKD
Retailer 13HK$11,378 HKD
Retailer 5HK$13,302 HKD
Retailer 7HK$17,300 HKD
Retailer 11HK$24,871 HKD

24 data points across 13 retailers

14 retailersHK$4,613 HKD to HK$24,871 HKD

B+
Cheapest Retailer
-
HK$4,613 HKD
$588 USD
A
Retailer 2
-
HK$4,668 HKD
$595 USD
View
A
Retailer 3
-
HK$4,704 HKD
£472 GBP
View
Retailer 4
-
HK$5,970 HKD
£599 GBP
View
Price last confirmed 14 days ago
A
Retailer 5
-
HK$6,096 HKD
$777 USD
View
B
Retailer 6
-
HK$10,176 HKD
$1,297 USD
View
B+
Retailer 7
-
HK$10,529 HKD
$1,342 USD
View
B
Retailer 8
-
HK$11,378 HKD
$1,450 USD
View
Retailer 9
-
HK$13,302 HKD
£1,335 GBP
View
Price last confirmed 20 days ago
B
Retailer 10
-
HK$17,300 HKD
$2,205 USD
View
Retailer 11
-
HK$19,771 HKD
$2,520 USD
View
Price last confirmed 14 days ago
B
Retailer 12
-
HK$21,419 HKD
$2,730 USD
View
B
Retailer 13
-
HK$24,871 HKD
$3,170 USD
View
Most Expensive
Brilliant Earth
21795752A · Oct 20
HK$28,245 HKD
$3,600 USD
View
Price last confirmed 11 days ago
13 more retailers have this diamond
Prices start from HK$4,613 HKDSave up to HK$20,258 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
2.55ct Oval
HK$4,613 HKD