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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 $578 SGD
$452 USD
As of November 1, 2026
Save $2,184 SGD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,761 SGD 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 $578 to $2,761, a $2,184 spread on the same certified stone. Rare Carat lists it at $2,761. 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

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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: Nov 1
Current: $2,761 SGD|Low: $578 SGD|High: $5,957 SGD|Avg: $1,924 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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 13$578 SGD
Retailer 6$648 SGD
Retailer 15$717 SGD
Retailer 17$802 SGD
Retailer 11$878 SGD
Retailer 14$901 SGD
Retailer 4$1,124 SGD
Retailer 16$1,130 SGD
Retailer 2$1,187 SGD
Retailer 7$1,446 SGD
Retailer 3$1,689 SGD
Retailer 12$1,928 SGD
Retailer 5$2,305 SGD
Retailer 10$2,635 SGD
Rare Carat$2,761 SGD
Retailer 9$5,740 SGD
Retailer 8$5,957 SGD

6 data points across 17 retailers

14 retailers$578 SGD to $2,761 SGD

A
Cheapest Retailer
-
$578 SGD
$452 USD
A
Retailer 2
-
$648 SGD
$507 USD
View
A
Retailer 3
-
$717 SGD
$561 USD
View
A
Retailer 4
-
$802 SGD
HK$4,900 HKD
View
A
Retailer 5
-
$878 SGD
£541 GBP
View
A
Retailer 6
-
$901 SGD
$705 USD
View
B+
Retailer 7
-
$1,124 SGD
$879 USD
View
A
Retailer 8
-
$1,130 SGD
$884 USD
View
A
Retailer 9
-
$1,187 SGD
£731 GBP
View
B+
Retailer 10
-
$1,689 SGD
$1,321 USD
View
B+
Retailer 11
-
$1,928 SGD
$1,508 USD
View
B
Retailer 12
-
$2,305 SGD
$1,803 USD
View
B
Retailer 13
-
$2,635 SGD
£1,623 GBP
View
Most Expensive
B
Rare Carat
KI8455978KF681 · Nov 1
$2,761 SGD
$2,160 USD
View
13 more retailers have this diamond
Prices start from $578 SGDSave up to $2,184 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
3.55ct Oval
$578 SGD