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Oval|Lab Grown|IGI

3.55ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG681597845

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG681597845

Diamond specifications and retailer prices

From HK$3,546 HKD
$452 USD
As of November 1, 2026
Save HK$13,400 HKD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$16,947 HKD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.55ct lab-grown oval diamond

This 3.55ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG681597845 or 681597845. Listed at 14 retailers as of November 1, 2026, with prices from HK$3,546 to HK$16,947, a HK$13,400 spread on the same certified stone. Rare Carat lists it at HK$16,947. 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

3.55
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681597845
Dimensions12.59 × 8.38 × 5.31 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.59 mm8.38 mm3.55 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681597845
Side View
Table 60.0%Crown 35.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.4%

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$16,947 HKD|Low: HK$3,546 HKD|High: HK$36,561 HKD|Avg: HK$11,810 HKD
Rare Carat
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 13HK$3,546 HKD
Retailer 6HK$3,978 HKD
Retailer 15HK$4,401 HKD
Retailer 17HK$4,921 HKD
Retailer 2HK$5,389 HKD
Retailer 14HK$5,531 HKD
Retailer 4HK$6,896 HKD
Retailer 16HK$6,936 HKD
Retailer 10HK$7,284 HKD
Retailer 7HK$8,872 HKD
Retailer 3HK$10,364 HKD
Retailer 12HK$11,831 HKD
Retailer 5HK$14,146 HKD
Retailer 11HK$16,172 HKD
Rare CaratHK$16,947 HKD
Retailer 9HK$35,228 HKD
Retailer 8HK$36,561 HKD

6 data points across 17 retailers

14 retailersHK$3,546 HKD to HK$16,947 HKD

A
Cheapest Retailer
-
HK$3,546 HKD
$452 USD
A
Retailer 2
-
HK$3,978 HKD
$507 USD
View
A
Retailer 3
-
HK$4,401 HKD
$561 USD
View
A
Retailer 4
-
HK$4,921 HKD
View
A
Retailer 5
-
HK$5,389 HKD
£541 GBP
View
A
Retailer 6
-
HK$5,531 HKD
$705 USD
View
B+
Retailer 7
-
HK$6,896 HKD
$879 USD
View
A
Retailer 8
-
HK$6,936 HKD
$884 USD
View
A
Retailer 9
-
HK$7,284 HKD
£731 GBP
View
B+
Retailer 10
-
HK$10,364 HKD
$1,321 USD
View
B+
Retailer 11
-
HK$11,831 HKD
$1,508 USD
View
B
Retailer 12
-
HK$14,146 HKD
$1,803 USD
View
B
Retailer 13
-
HK$16,172 HKD
£1,623 GBP
View
Most Expensive
B
Rare Carat
KI8455978KF681 · Nov 1
HK$16,947 HKD
$2,160 USD
View
13 more retailers have this diamond
Prices start from HK$3,546 HKDSave up to HK$13,400 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
3.55ct Oval
HK$3,546 HKD