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Cushion|Lab Grown|IGI

5.12ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG818636803

Shape and cutting style on the report: Rectangular cushion mixed cut

Certificate IGI LG818636803

Diamond specifications and retailer prices

From HK$18,304 HKD
$2,333 USD
As of October 31, 2026
Save HK$69,600 HKD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$135,495 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 5.12ct lab-grown cushion diamond

This 5.12ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818636803 or 818636803. Listed at 16 retailers as of October 31, 2026, with a 380% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.12
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818636803
Dimensions12.81 × 7.99 × 5.51 mm
L/W Ratio1.60
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.81 mm7.99 mm5.12 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818636803
Side View
Table 61.0%Crown 38.6°Girdle: MED-THKPavilion 40.2°Culet: LargeDepth 69.0%

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 31
Current: HK$135,495 HKD|Low: HK$18,304 HKD|High: HK$141,458 HKD|Avg: HK$51,650 HKD|-4.2%
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
Retailer 14
Retailer 15
October 31, 2026
Retailer 14HK$18,304 HKD
Retailer 7HK$22,054 HKD
Retailer 3HK$22,847 HKD
Retailer 12HK$24,126 HKD
Retailer 15HK$24,369 HKD
Retailer 9HK$32,089 HKD
Retailer 2HK$34,072 HKD
Retailer 6HK$43,523 HKD
Retailer 10HK$51,196 HKD
Retailer 8HK$51,246 HKD
Retailer 13HK$61,008 HKD
Retailer 4HK$63,293 HKD
Retailer 11HK$64,268 HKD
Retailer 5HK$87,904 HKD
Do Amore DiamondsHK$135,495 HKD

43 data points across 15 retailers

16 retailersHK$18,304 HKD to HK$87,904 HKD

A
Cheapest Retailer
-
HK$18,304 HKD
$2,333 USD
B+
Retailer 2
-
HK$22,054 HKD
$2,811 USD
View
Final sale: no returns
Retailer 3
-
HK$22,847 HKD
$2,912 USD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
HK$24,126 HKD
$3,075 USD
View
B+
Retailer 5
-
HK$24,369 HKD
$3,106 USD
View
B+
Retailer 6
-
HK$32,089 HKD
$4,090 USD
View
B+
Retailer 7
-
HK$34,072 HKD
£3,420 GBP
View
B
Retailer 8
-
HK$43,523 HKD
£4,368 GBP
View
Retailer 9
-
HK$51,196 HKD
A$10,039 AUD
View
Price last confirmed 10 days ago
B
Retailer 10
-
HK$51,246 HKD
ZAR 105,521 ZAR
View
B
Retailer 11
-
HK$61,008 HKD
$7,776 USD
View
B
Retailer 12
-
HK$63,293 HKD
$8,067 USD
View
B
Retailer 13
-
HK$64,268 HKD
£6,450 GBP
View
B
Retailer 14
-
HK$87,904 HKD
$11,204 USD
View
Retailer 15
-
HK$110,389 HKD
$14,070 USD
View
Price under review
Most Expensive
Do Amore Diamonds
27-BC2FEE840 · Oct 31
HK$135,495 HKD
$17,270 USD
View
Price under review
15 more retailers have this diamond
Prices start from HK$18,304 HKDSave up to HK$69,600 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
5.12ct Cushion
HK$18,304 HKD