Round|Lab Grown|IGI

1.29ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG818645102

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818645102

Diamond specifications and retailer prices

From $194 USD
As of October 29, 2026
Save $934 USD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,130 USD at Brilliant Earth · As of September 20, 2026
View at Brilliant Earth

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818645102 or 818645102. Listed at 22 retailers as of October 29, 2026, with a 481% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818645102
Dimensions6.99 × 7.04 × 4.28 mm
L/W Ratio1.01
Girdle conditionFaceted
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
Top View
6.99 mm7.04 mm1.29 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818645102
Side View
Table 57.0%Crown 34.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.1%

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: $437 USD|Low: $186 USD|High: $1,135 USD|Avg: $442 USD|+4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 13$194 USD
Retailer 5$217 USD
Retailer 3$240 USD
Retailer 4$269 USD
Retailer 2$325 USD
Retailer 8$405 USD
Retailer 9$412 USD
Retailer 6$415 USD
Retailer 1$437 USD
Retailer 11$530 USD
Retailer 10$586 USD
Retailer 12$611 USD
Retailer 7$1,128 USD

35 data points across 13 retailers

22 retailers$194 USD to $1,128 USD

A
Cheapest Retailer
-
$194 USD
A
Retailer 2
-
$217 USD
View
Final sale: no returns
A
Retailer 3
-
$225 USD
View
A
Retailer 4
-
$240 USD
View
A
Retailer 5
-
$240 USD
View
A
Retailer 6
-
$269 USD
HK$2,100 HKD
View
B+
Retailer 7
-
$325 USD
View
A
Retailer 8
-
$405 USD
€386 EUR
View
A
Retailer 9
-
$412 USD
ZAR 6,658 ZAR
View
A
Retailer 10
-
$415 USD
£327 GBP
View
A
Retailer 11
-
$437 USD
£344 GBP
View
B+
Retailer 12
-
$441 USD
View
B+
Retailer 13
-
$489 USD
View
Retailer 14
-
$530 USD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
$586 USD
A$901 AUD
View
B
Retailer 16
-
$611 USD
View
B
Retailer 17
-
$772 USD
View
B
Retailer 18
-
$785 USD
SGD 1,061 SGD
View
B
Retailer 19
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$809 USD
View
B
Retailer 20
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$825 USD
View
B
Retailer 21
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$1,128 USD
£888 GBP
View
Most Expensive
Brilliant Earth
21453399A · Sep 20
$1,130 USD
View
Price last confirmed 40 days ago
21 more retailers have this diamond
Prices start from $194 USDSave up to $934 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
1.29ct Round
$194 USD