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Round|Lab Grown|IGI

1.55ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG801637280

Shape and cutting style on the report: Round brilliant

Certificate IGI LG801637280

Diamond specifications and retailer prices

From $384 USD
HK$3,000 HKD
As of November 1, 2026
Save $1,686 USD (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,070 USD 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 LG801637280 or 801637280. Listed at 23 retailers as of October 31, 2026, with prices from $384 to $2,070, a $1,686 spread on the same certified stone. Brilliant Earth lists it at $2,070. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801637280
Dimensions7.39 × 7.41 × 4.58 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm7.41 mm1.55 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801637280
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.9%

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: Nov 1
Current: $2,070 USD|Low: $384 USD|High: $2,420 USD|Avg: $1,020 USD|-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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 7$384 USD
Retailer 13$460 USD
Retailer 16$460 USD
Retailer 2$551 USD
Retailer 11$564 USD
Retailer 17$591 USD
Retailer 10$624 USD
Retailer 15$761 USD
Retailer 14$822 USD
Retailer 8$885 USD
Retailer 6$1,102 USD
Retailer 3$1,122 USD
Retailer 4$1,286 USD
Retailer 12$1,311 USD
Retailer 5$1,452 USD
Retailer 9$1,870 USD
Brilliant Earth$2,070 USD

35 data points across 17 retailers

23 retailers$384 USD to $2,070 USD

Retailer 1
-
$266 USD
Price last confirmed 15 days ago
Retailer 2
-
$316 USD
View
Price last confirmed 20 days ago
Retailer 3
-
$338 USD
View
Price last confirmed 31 days ago
Retailer 4
-
$338 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$384 USD
HK$3,000 HKD
View
A
Retailer 6
-
$460 USD
View
B+
Retailer 7
-
$460 USD
View
A
Retailer 8
-
$551 USD
€525 EUR
View
A
Retailer 9
-
$564 USD
ZAR 9,107 ZAR
View
A
Retailer 10
-
$591 USD
View
A
Retailer 11
-
$624 USD
£492 GBP
View
A
Retailer 12
-
$761 USD
A$1,170 AUD
View
A
Retailer 13
-
$822 USD
View
B+
Retailer 14
-
$885 USD
View
Retailer 15
-
$1,062 USD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
$1,102 USD
View
B+
Retailer 17
-
$1,122 USD
SGD 1,516 SGD
View
B+
Retailer 18
-
$1,255 USD
View
B+
Retailer 19
-
$1,286 USD
View
B+
Retailer 20
-
$1,311 USD
£1,032 GBP
View
B
Retailer 21
-
$1,452 USD
View
Retailer 22
-
$1,870 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
20215236A · Oct 31
$2,070 USD
View
22 more retailers have this diamond
Prices start from $384 USDSave up to $1,686 USD

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
$384 USD