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Oval|Lab Grown|IGI

12.27ct H VS1 Oval Lab Grown Diamond

ID • H/VS1 • IGI LG818686315

Shape and cutting style on the report: Antique oval cut

Certificate IGI LG818686315

Diamond specifications and retailer prices

From HK$28,951 HKD
$3,690 USD
As of November 1, 2026
Save HK$89,623 HKD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$118,573 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.27ct lab-grown oval diamond

This 12.27ct lab-grown oval sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818686315 or 818686315. Listed at 14 retailers as of October 31, 2026, with prices from HK$28,951 to HK$118,573, a HK$89,623 spread on the same certified stone. Taylor and Hart lists it at HK$118,573. 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

12.27
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686315
Dimensions21.52 × 11.36 × 7.13 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
21.52 mm11.36 mm12.27 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686315
Side View
Table 59.0%Crown 40.2°Girdle: STK-THKPavilion 40.5°Culet: LargeDepth 62.8%

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 1
Current: HK$62,920 HKD|Low: HK$28,951 HKD|High: HK$118,573 HKD|Avg: HK$55,946 HKD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 1, 2026
Retailer 7HK$28,951 HKD
Retailer 8HK$33,587 HKD
Retailer 5HK$33,619 HKD
Retailer 6HK$45,419 HKD
Retailer 10HK$51,534 HKD
Retailer 4HK$51,981 HKD
Retailer 9HK$52,056 HKD
Retailer 3HK$54,025 HKD
Retailer 2HK$60,286 HKD
Retailer 1HK$62,920 HKD
Taylor and HartHK$118,573 HKD

25 data points across 11 retailers

14 retailersHK$28,951 HKD to HK$118,573 HKD

A
Cheapest Retailer
-
HK$28,951 HKD
$3,690 USD
A
Retailer 2
-
HK$31,500 HKD
$4,015 USD
View
B+
Retailer 3
-
HK$33,587 HKD
$4,281 USD
View
Retailer 4
-
HK$33,587 HKD
$4,281 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
HK$33,619 HKD
$4,285 USD
View
B+
Retailer 6
-
HK$41,967 HKD
$5,349 USD
View
B+
Retailer 7
-
HK$45,419 HKD
$5,789 USD
View
B+
Retailer 8
-
HK$51,534 HKD
£5,172 GBP
View
B+
Retailer 9
-
HK$51,981 HKD
ZAR 107,034 ZAR
View
B+
Retailer 10
-
HK$52,056 HKD
$6,635 USD
View
B+
Retailer 11
-
HK$54,025 HKD
€6,558 EUR
View
B
Retailer 12
-
HK$60,286 HKD
$7,684 USD
View
B
Retailer 13
-
HK$62,920 HKD
A$12,338 AUD
View
Most Expensive
B
Taylor and Hart
8JZ5323 · Oct 31
HK$118,573 HKD
$15,113 USD
View
13 more retailers have this diamond
Prices start from HK$28,951 HKDSave up to HK$89,623 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
12.27ct Oval
HK$28,951 HKD