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Round|Lab Grown|IGI

1.77ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG589389041

Shape and cutting style on the report: Round brilliant

Certificate IGI LG589389041

Diamond specifications and retailer prices

From $267 SGD
$209 USD
As of October 29, 2026
Save $2,303 SGD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,571 SGD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.77ct lab-grown round diamond

This 1.77ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG589389041 or 589389041. Listed at 10 retailers as of October 29, 2026, with prices from $267 to $2,571, a $2,303 spread on the same certified stone. Do Amore Diamonds lists it at $2,571. 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

1.77
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589389041
Dimensions7.73 × 7.69 × 4.81 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.73 mm7.69 mm1.77 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589389041
Side View
Table 56.0%Crown 34.9°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
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: $2,571 SGD|Low: $221 SGD|High: $2,635 SGD|Avg: $1,095 SGD|-2.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 8$267 SGD
Retailer 10$303 SGD
Retailer 6$311 SGD
Retailer 5$570 SGD
Retailer 7$1,005 SGD
Retailer 3$1,070 SGD
Retailer 4$1,178 SGD
Retailer 9$1,356 SGD
Retailer 2$1,476 SGD
Do Amore Diamonds$2,571 SGD

20 data points across 10 retailers

10 retailers$267 SGD to $2,571 SGD

A
Cheapest Retailer
-
$267 SGD
$209 USD
A
Retailer 2
-
$303 SGD
$237 USD
View
Final sale: no returns
A
Retailer 3
-
$311 SGD
$243 USD
View
B+
Retailer 4
-
$570 SGD
$446 USD
View
B+
Retailer 5
-
$1,005 SGD
$786 USD
View
Retailer 6
-
$1,070 SGD
$837 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$1,178 SGD
$921 USD
View
B
Retailer 8
-
$1,356 SGD
$1,060 USD
View
B
Retailer 9
-
$1,476 SGD
£909 GBP
View
Most Expensive
B
Do Amore Diamonds
27-67326A655 · Oct 29
$2,571 SGD
$2,010 USD
View
9 more retailers have this diamond
Prices start from $267 SGDSave up to $2,303 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
1.77ct Round
$267 SGD