Round|Lab Grown|IGI

1.25ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG839672601

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839672601

Diamond specifications and retailer prices

From $650 USD
As of October 23, 2026
Save $17 USD (3%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $900 USD at MOH London · As of October 21, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839672601 or 839672601. Listed at 17 retailers as of October 23, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839672601
Dimensions6.85 × 6.88 × 4.29 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.85 mm6.88 mm1.25 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839672601
Side View
Table 59.0%Crown 34.9°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 23
Current: $900 USD|Low: $148 USD|High: $907 USD|Avg: $432 USD|-0.7%
MOH London
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
October 18, 2026
Retailer 15$154 USD
Retailer 3$179 USD
Retailer 14$192 USD
Retailer 16$192 USD
Retailer 4$218 USD
Retailer 8$260 USD
Retailer 11$326 USD
Retailer 2$328 USD
Retailer 12$434 USD
Retailer 6$444 USD
Retailer 10$510 USD
Retailer 17$616 USD
Retailer 9$639 USD
Retailer 13$650 USD
Retailer 5$667 USD
Retailer 7$671 USD
MOH London$900 USD

14 data points across 17 retailers

17 retailers$650 USD to $667 USD

A
Retailer 1
-
$154 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$179 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$192 USD
View
Price last confirmed 13 days ago
A
Retailer 4
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$192 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$218 USD
HK$1,700 HKD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$260 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$326 USD
ZAR 5,266 ZAR
View
Price last confirmed 11 days ago
A
Retailer 8
-
$328 USD
€312 EUR
View
Price last confirmed 11 days ago
A
Retailer 9
-
$434 USD
£342 GBP
View
Price last confirmed 12 days ago
A
Retailer 10
-
$444 USD
View
Price last confirmed 7 days ago
A
Retailer 11
-
$510 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$616 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$639 USD
SGD 864 SGD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$650 USD
View
B+
Retailer 15
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$667 USD
View
B+
Retailer 16
-
$671 USD
View
Price last confirmed 8 days ago
Most Expensive
B+
MOH London
LG839672601 · Oct 21
$900 USD
£709 GBP
View
Price last confirmed 8 days ago
16 more retailers have this diamond
Prices start from $650 USDSave up to $17 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
1.25ct Round
$650 USD