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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 $175 SGD
$137 USD
As of October 29, 2026
Save $524 SGD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,119 SGD 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 12 retailers as of October 27, 2026, with a 299% 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

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,119 SGD|Low: $175 SGD|High: $2,118 SGD|Avg: $691 SGD
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
October 30, 2026
Retailer 9$175 SGD
Retailer 2$203 SGD
Retailer 4$217 SGD
Retailer 14$245 SGD
Retailer 8$368 SGD
Retailer 10$388 SGD
Retailer 12$395 SGD
Retailer 13$408 SGD
Retailer 7$431 SGD
Retailer 11$536 SGD
Retailer 3$699 SGD
Retailer 5$1,004 SGD
Rare Carat$1,119 SGD
Retailer 6$1,342 SGD

5 data points across 14 retailers

12 retailers$175 SGD to $699 SGD

A
Cheapest Retailer
-
$175 SGD
$137 USD
A
Retailer 2
-
$203 SGD
$159 USD
View
A
Retailer 3
-
$217 SGD
$170 USD
View
A
Retailer 4
-
$245 SGD
HK$1,500 HKD
View
A
Retailer 5
-
$368 SGD
£227 GBP
View
A
Retailer 6
-
$388 SGD
€289 EUR
View
A
Retailer 7
-
$395 SGD
$309 USD
View
B+
Retailer 8
-
$408 SGD
$319 USD
View
A
Retailer 9
-
$431 SGD
£265 GBP
View
B+
Retailer 10
-
$536 SGD
$419 USD
View
B+
Retailer 11
-
$699 SGD
$547 USD
View
Most Expensive
Rare Carat
1271316 · Aug 9
$1,119 SGD
$875 USD
View
Price last confirmed 82 days ago
11 more retailers have this diamond
Prices start from $175 SGDSave up to $524 SGD

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
$175 SGD