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Round|Lab Grown|IGI

1.55ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG801637658

Shape and cutting style on the report: Round brilliant

Certificate IGI LG801637658

Diamond specifications and retailer prices

From $725 SGD
€540 EUR
As of October 29, 2026
Save $1,921 SGD (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,646 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG801637658 or 801637658. Listed at 15 retailers as of October 29, 2026, with prices from $725 to $2,646, a $1,921 spread on the same certified stone. Brilliant Earth lists it at $2,646. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801637658
Dimensions7.42 × 7.38 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II Faint Blue
Top View
7.42 mm7.38 mm1.55 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801637658
Side View
Table 56.0%Crown 34.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.0%

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: $2,646 SGD|Low: $435 SGD|High: $3,017 SGD|Avg: $1,247 SGD|-12.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 5$435 SGD
Retailer 8$725 SGD
Retailer 9$730 SGD
Retailer 6$763 SGD
Retailer 2$778 SGD
Retailer 10$779 SGD
Retailer 7$1,064 SGD
Retailer 13$1,138 SGD
Retailer 4$1,487 SGD
Retailer 3$1,700 SGD
Retailer 11$1,783 SGD
Retailer 12$2,397 SGD
Brilliant Earth$2,646 SGD

44 data points across 13 retailers

15 retailers$725 SGD to $2,646 SGD

Retailer 1
-
$435 SGD
$340 USD
Price last confirmed 21 days ago
A
Retailer 2
-
$725 SGD
€540 EUR
View
A
Retailer 3
-
$730 SGD
$571 USD
View
A
Retailer 4
-
$763 SGD
ZAR 9,639 ZAR
View
A
Retailer 5
-
$778 SGD
£479 GBP
View
A
Retailer 6
-
$779 SGD
$609 USD
View
A
Retailer 7
-
$1,064 SGD
$832 USD
View
B+
Retailer 8
-
$1,138 SGD
$890 USD
View
B+
Retailer 9
-
$1,487 SGD
$1,163 USD
View
B+
Retailer 10
-
$1,602 SGD
$1,253 USD
View
B
Retailer 11
-
$1,700 SGD
$1,330 USD
View
Retailer 12
-
$1,783 SGD
£1,098 GBP
View
Price last confirmed 12 days ago
Retailer 13
-
$2,397 SGD
$1,875 USD
View
Price last confirmed 12 days ago
Retailer 14
-
$2,403 SGD
$1,880 USD
View
Price last confirmed 26 days ago
Most Expensive
B
Brilliant Earth
19934393A · Oct 31
$2,646 SGD
$2,070 USD
View
14 more retailers have this diamond
Prices start from $725 SGDSave up to $1,921 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
1.55ct Round
$725 SGD