Round|Lab Grown|IGI

1.27ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG840650590

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840650590

Diamond specifications and retailer prices

From $180 USD
As of October 29, 2026
Save $600 USD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,046 USD at MOH London · As of October 19, 2026
View at MOH London

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840650590 or 840650590. Listed at 21 retailers as of October 29, 2026, with a 333% 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

1.27
Carat
G
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840650590
Dimensions6.98 × 7.01 × 4.27 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
6.98 mm7.01 mm1.27 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840650590
Side View
Table 56.0%Crown 34.8°Girdle: MediumPavilion 40.4°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: $1,046 USD|Low: $172 USD|High: $1,053 USD|Avg: $484 USD|-0.6%
MOH London
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
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Retailer 9
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Retailer 19
Retailer 20
October 30, 2026
Retailer 19$180 USD
Retailer 5$208 USD
Retailer 4$223 USD
Retailer 6$223 USD
Retailer 3$256 USD
Retailer 9$300 USD
Retailer 2$373 USD
Retailer 14$376 USD
Retailer 15$382 USD
Retailer 13$400 USD
Retailer 10$473 USD
Retailer 7$478 USD
Retailer 16$543 USD
Retailer 17$620 USD
Retailer 20$715 USD
Retailer 12$739 USD
Retailer 11$755 USD
Retailer 18$756 USD
Retailer 8$770 USD
MOH London$1,046 USD

30 data points across 20 retailers

21 retailers$180 USD to $780 USD

A
Cheapest Retailer
-
$180 USD
A
Retailer 2
-
$208 USD
View
A
Retailer 3
-
$223 USD
View
A
Retailer 4
-
$223 USD
View
A
Retailer 5
-
$256 USD
HK$2,000 HKD
View
B+
Retailer 6
-
$300 USD
View
A
Retailer 7
-
$373 USD
£293 GBP
View
A
Retailer 8
-
$376 USD
€358 EUR
View
A
Retailer 9
-
$382 USD
ZAR 6,175 ZAR
View
A
Retailer 10
-
$400 USD
£315 GBP
View
B+
Retailer 11
-
$473 USD
View
B+
Retailer 12
-
$478 USD
View
B+
Retailer 13
-
$543 USD
A$835 AUD
View
Retailer 14
-
$620 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
$715 USD
View
B
Retailer 16
-
$739 USD
SGD 998 SGD
View
B
Retailer 17
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$755 USD
View
B
Retailer 18
-
$756 USD
View
B
Retailer 19
-
$770 USD
View
B
Retailer 20
-
$780 USD
View
Most Expensive
MOH London
LG840650590 · Oct 19
$1,046 USD
£824 GBP
View
Price last confirmed 11 days ago
20 more retailers have this diamond
Prices start from $180 USDSave up to $600 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
1.27ct Round
$180 USD