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Round|Lab Grown|IGI

1.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG698516538

Shape and cutting style on the report: Round brilliant

Certificate IGI LG698516538

Diamond specifications and retailer prices

From HK$1,075 HKD
$137 USD
As of October 29, 2026
Save HK$3,460 HKD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$6,865 HKD at Rare Carat · As of August 9, 2026
View at Rare Carat

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG698516538 or 698516538. Listed at 13 retailers as of October 29, 2026, with a 322% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG698516538
Dimensions6.58 × 6.63 × 4.07 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.58 mm6.63 mm1.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG698516538
Side View
Table 55.0%Crown 34.8°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.7%

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$6,865 HKD|Low: HK$1,075 HKD|High: HK$13,000 HKD|Avg: HK$4,246 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
October 30, 2026
Retailer 11HK$1,075 HKD
Retailer 8HK$1,247 HKD
Retailer 5HK$1,334 HKD
Retailer 3HK$1,506 HKD
Retailer 10HK$2,260 HKD
Retailer 12HK$2,381 HKD
Retailer 14HK$2,424 HKD
Retailer 15HK$2,503 HKD
Retailer 9HK$2,645 HKD
Retailer 13HK$3,287 HKD
Retailer 4HK$4,292 HKD
Retailer 2HK$4,535 HKD
Retailer 6HK$6,160 HKD
Rare CaratHK$6,865 HKD
Retailer 7HK$8,238 HKD

5 data points across 15 retailers

13 retailersHK$1,075 HKD to HK$4,535 HKD

A
Cheapest Retailer
-
HK$1,075 HKD
$137 USD
A
Retailer 2
-
HK$1,247 HKD
$159 USD
View
A
Retailer 3
-
HK$1,334 HKD
$170 USD
View
A
Retailer 4
-
HK$1,506 HKD
View
A
Retailer 5
-
HK$2,260 HKD
£227 GBP
View
A
Retailer 6
-
HK$2,381 HKD
€289 EUR
View
A
Retailer 7
-
HK$2,424 HKD
$309 USD
View
B+
Retailer 8
-
HK$2,503 HKD
$319 USD
View
A
Retailer 9
-
HK$2,645 HKD
£265 GBP
View
B+
Retailer 10
-
HK$3,287 HKD
$419 USD
View
B+
Retailer 11
-
HK$4,292 HKD
$547 USD
View
B
Retailer 12
-
HK$4,535 HKD
$578 USD
View
Most Expensive
Rare Carat
1271316 · Aug 9
HK$6,865 HKD
$875 USD
View
Price last confirmed 82 days ago
12 more retailers have this diamond
Prices start from HK$1,075 HKDSave up to HK$3,460 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
1.09ct Round
HK$1,075 HKD