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Oval|Lab Grown|IGI

2.57ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG754533605

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754533605

Diamond specifications and retailer prices

From HK$3,672 HKD
$468 USD
As of October 25, 2026
Save HK$29,516 HKD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$33,187 HKD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 2.57ct lab-grown oval diamond

This 2.57ct 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 LG754533605 or 754533605. Listed at 19 retailers as of October 25, 2026, with prices from HK$3,672 to HK$33,187, a HK$29,516 spread on the same certified stone. Brilliant Earth lists it at HK$33,187. 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

2.57
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754533605
Dimensions11.24 × 7.69 × 4.70 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.24 mm7.69 mm2.57 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG754533605
Side View
Table 58.0%Crown 36.9°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: HK$33,187 HKD|Low: HK$2,464 HKD|High: HK$34,207 HKD|Avg: HK$9,816 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 26, 2026
Retailer 4HK$2,464 HKD
Retailer 12HK$3,355 HKD
Retailer 6HK$3,672 HKD
Retailer 9HK$4,001 HKD
Retailer 11HK$4,383 HKD
Retailer 2HK$4,714 HKD
Retailer 3HK$5,696 HKD
Retailer 8HK$6,755 HKD
Retailer 13HK$7,618 HKD
Retailer 14HK$9,159 HKD
Retailer 7HK$10,941 HKD
Retailer 5HK$11,372 HKD
Retailer 10HK$17,182 HKD
Brilliant EarthHK$33,187 HKD

35 data points across 14 retailers

19 retailersHK$3,672 HKD to HK$33,187 HKD

Retailer 1
-
HK$2,409 HKD
$307 USD
Price last confirmed 37 days ago
Retailer 2
-
HK$2,409 HKD
$307 USD
View
Price last confirmed 20 days ago
Retailer 3
-
HK$2,989 HKD
$381 USD
View
Price last confirmed 20 days ago
Retailer 4
-
HK$3,327 HKD
$424 USD
View
Price last confirmed 34 days ago
Retailer 5
-
HK$3,355 HKD
£337 GBP
View
Price last confirmed 13 days ago
Retailer 6
-
HK$3,640 HKD
$464 USD
View
Price last confirmed 34 days ago
B+
Retailer 7
-
HK$3,672 HKD
$468 USD
View
A
Retailer 8
-
HK$4,001 HKD
$510 USD
View
A
Retailer 9
-
HK$4,714 HKD
£473 GBP
View
A
Retailer 10
-
HK$5,696 HKD
$726 USD
View
Retailer 11
-
HK$6,551 HKD
$835 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
HK$6,755 HKD
$861 USD
View
B+
Retailer 13
-
HK$7,618 HKD
$971 USD
View
B+
Retailer 14
-
HK$9,159 HKD
$1,167 USD
View
Retailer 15
-
HK$9,611 HKD
$1,225 USD
View
Price last confirmed 20 days ago
B
Retailer 16
-
HK$10,941 HKD
£1,098 GBP
View
B
Retailer 17
-
HK$11,372 HKD
$1,450 USD
View
Retailer 18
-
HK$17,182 HKD
$2,190 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
16844908A · Oct 26
HK$33,187 HKD
$4,230 USD
View
18 more retailers have this diamond
Prices start from HK$3,672 HKDSave up to HK$29,516 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 Oval
HK$3,672 HKD