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Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG685590864

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG685590864

Diamond specifications and retailer prices

From HK$2,142 HKD
$273 USD
As of October 29, 2026
Save HK$16,923 HKD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$19,065 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685590864 or 685590864. Listed at 16 retailers as of October 29, 2026, with prices from HK$2,142 to HK$19,065, a HK$16,923 spread on the same certified stone. Do Amore Diamonds lists it at HK$19,065. 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

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685590864
Dimensions9.18 × 6.36 × 3.96 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.18 mm6.36 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685590864
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 39.7°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 29
Current: HK$19,065 HKD|Low: HK$2,056 HKD|High: HK$19,065 HKD|Avg: HK$6,137 HKD
Do Amore Diamonds
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 10HK$2,142 HKD
Retailer 13HK$2,487 HKD
Retailer 4HK$2,660 HKD
Retailer 11HK$2,660 HKD
Retailer 6HK$3,277 HKD
Retailer 3HK$4,707 HKD
Retailer 2HK$5,212 HKD
Retailer 8HK$5,395 HKD
Retailer 5HK$6,258 HKD
Retailer 9HK$8,167 HKD
Retailer 12HK$9,438 HKD
Retailer 7HK$11,827 HKD
Do Amore DiamondsHK$19,065 HKD

43 data points across 13 retailers

16 retailersHK$2,142 HKD to HK$19,065 HKD

A
Cheapest Retailer
-
HK$2,142 HKD
$273 USD
A
Retailer 2
-
HK$2,487 HKD
$317 USD
View
A
Retailer 3
-
HK$2,660 HKD
$339 USD
View
A
Retailer 4
-
HK$2,660 HKD
$339 USD
View
A
Retailer 5
-
HK$3,130 HKD
$399 USD
View
A
Retailer 6
-
HK$3,277 HKD
£329 GBP
View
B+
Retailer 7
-
HK$3,546 HKD
$452 USD
View
B+
Retailer 8
-
HK$3,884 HKD
$495 USD
View
B+
Retailer 9
-
HK$4,707 HKD
$600 USD
View
B+
Retailer 10
-
HK$5,212 HKD
£523 GBP
View
B+
Retailer 11
-
HK$5,395 HKD
A$1,058 AUD
View
B+
Retailer 12
-
HK$6,258 HKD
$798 USD
View
B
Retailer 13
-
HK$8,167 HKD
$1,041 USD
View
B
Retailer 14
-
HK$9,438 HKD
$1,203 USD
View
B
Retailer 15
-
HK$11,827 HKD
£1,187 GBP
View
Most Expensive
B
Do Amore Diamonds
27-396100D34 · Oct 31
HK$19,065 HKD
$2,430 USD
View
15 more retailers have this diamond
Prices start from HK$2,142 HKDSave up to HK$16,923 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
1.51ct Oval
HK$2,142 HKD