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Oval|Lab Grown|IGI

4.28ct E IF Oval Lab Grown Diamond

EX • E/IF • IGI LG688516648

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG688516648

Diamond specifications and retailer prices

From HK$18,512 HKD
£1,858 GBP
As of October 30, 2026
Save HK$100,585 HKD (84%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: HK$119,098 HKD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.28ct lab-grown oval diamond

This 4.28ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG688516648 or 688516648. Listed at 28 retailers as of October 29, 2026, with prices from HK$18,512 to HK$119,098, a HK$100,585 spread on the same certified stone. Do Amore Diamonds lists it at HK$119,098. 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

4.28
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG688516648
Dimensions13.16 × 9.30 × 5.73 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
13.16 mm9.30 mm4.28 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG688516648
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.6%

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$119,098 HKD|Low: HK$18,450 HKD|High: HK$119,098 HKD|Avg: HK$42,866 HKD
Do Amore Diamonds
Retailer 2
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Retailer 19
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Retailer 25
October 30, 2026
Retailer 2HK$18,512 HKD
Retailer 14HK$19,104 HKD
Retailer 3HK$19,379 HKD
Retailer 4HK$20,077 HKD
Retailer 17HK$20,783 HKD
Retailer 22HK$21,325 HKD
Retailer 21HK$21,380 HKD
Retailer 25HK$26,211 HKD
Retailer 8HK$30,457 HKD
Retailer 13HK$30,522 HKD
Retailer 23HK$31,469 HKD
Retailer 9HK$34,552 HKD
Retailer 24HK$36,694 HKD
Retailer 15HK$42,088 HKD
Retailer 19HK$47,170 HKD
Retailer 10HK$47,550 HKD
Retailer 12HK$48,505 HKD
Retailer 11HK$52,919 HKD
Retailer 6HK$53,602 HKD
Retailer 5HK$56,123 HKD
Retailer 20HK$59,645 HKD
Retailer 7HK$75,841 HKD
Retailer 18HK$77,348 HKD
Retailer 16HK$81,674 HKD
Do Amore DiamondsHK$119,098 HKD

22 data points across 25 retailers

28 retailersHK$18,512 HKD to HK$119,098 HKD

A
Cheapest Retailer
-
HK$18,512 HKD
£1,858 GBP
Retailer 2
-
HK$19,104 HKD
$2,435 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
HK$19,379 HKD
$2,470 USD
View
Final sale: no returns
A
Retailer 4
-
HK$20,077 HKD
$2,559 USD
View
Retailer 5
-
HK$20,783 HKD
$2,649 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
HK$21,325 HKD
$2,718 USD
View
A
Retailer 7
-
HK$21,380 HKD
$2,725 USD
View
A
Retailer 8
-
HK$26,211 HKD
View
Retailer 9
-
HK$27,829 HKD
$3,547 USD
View
Price last confirmed 18 days ago
A
Retailer 10
-
HK$30,457 HKD
$3,882 USD
View
A
Retailer 11
-
HK$30,522 HKD
£3,063 GBP
View
A
Retailer 12
-
HK$31,469 HKD
$4,011 USD
View
Retailer 13
-
HK$34,552 HKD
$4,404 USD
View
Price last confirmed 7 days ago
A
Retailer 14
-
HK$36,694 HKD
$4,677 USD
View
A
Retailer 15
-
HK$42,088 HKD
£4,224 GBP
View
A
Retailer 16
-
HK$47,170 HKD
ZAR 97,128 ZAR
View
Retailer 17
-
HK$47,550 HKD
A$9,324 AUD
View
Price last confirmed 8 days ago
Retailer 18
-
HK$52,919 HKD
$6,745 USD
View
Price last confirmed 9 days ago
B+
Retailer 19
-
HK$53,602 HKD
$6,832 USD
View
B+
Retailer 20
-
HK$56,123 HKD
$7,153 USD
View
B+
Retailer 21
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HK$57,407 HKD
$7,317 USD
View
B+
Retailer 22
-
HK$59,645 HKD
£5,986 GBP
View
Retailer 23
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HK$73,933 HKD
£7,420 GBP
View
Price last confirmed 21 days ago
B
Retailer 24
-
HK$75,841 HKD
SGD 13,063 SGD
View
B
Retailer 25
-
HK$77,348 HKD
$9,859 USD
View
B+
Retailer 26
-
HK$81,674 HKD
$10,410 USD
View
B
Retailer 27
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HK$81,674 HKD
$10,410 USD
View
Most Expensive
B
Do Amore Diamonds
27-DF53EF8B5 · Oct 29
HK$119,098 HKD
$15,180 USD
View
27 more retailers have this diamond
Prices start from HK$18,512 HKDSave up to HK$100,585 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
4.28ct Oval
HK$18,512 HKD