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Oval|Lab Grown|IGI

1.00ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG508156211

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG508156211

Diamond specifications and retailer prices

From $602 USD
As of November 1, 2026
Save $1,249 USD (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,962 USD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG508156211 or 508156211. Listed at 12 retailers as of November 1, 2026, with a 207% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle41.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156211
Dimensions7.89 × 5.45 × 3.42 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.89 mm5.45 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG508156211
Side View
Table 59.5%Crown 41.3°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,167 USD|Low: $602 USD|High: $3,278 USD|Avg: $1,284 USD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$602 USD
Retailer 8$673 USD
Retailer 3$840 USD
Retailer 4$875 USD
Retailer 7$1,144 USD
Retailer 1$1,167 USD
Retailer 5$1,851 USD
Retailer 2$3,239 USD

40 data points across 8 retailers

12 retailers$602 USD to $1,851 USD

B+
Cheapest Retailer
-
$602 USD
B+
Retailer 2
-
$673 USD
View
Final sale: no returns
B+
Retailer 3
-
$674 USD
View
Retailer 4
-
$746 USD
View
Price last confirmed 17 days ago
B
Retailer 5
-
$746 USD
View
B
Retailer 6
-
$840 USD
View
B
Retailer 7
-
$875 USD
View
B
Retailer 8
-
$1,144 USD
View
B
Retailer 9
-
$1,167 USD
£919 GBP
View
B
Retailer 10
-
$1,851 USD
View
Most Expensive
NZ Jewellers
e73373b2-4bad-45ae-a88d-4df4b7d2da15 · Oct 31
$1,962 USD
View
Price under review
10 more retailers have this diamond
Prices start from $602 USDSave up to $1,249 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.

B+
1.00ct Oval
$602 USD