CaratHunter
Plans
Oval|Lab Grown|IGI

5.51ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG567366087

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG567366087

Diamond specifications and retailer prices

From $664 USD
As of October 29, 2026
Save $2,597 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,261 USD at MOH London · As of October 29, 2026
View at MOH London

About this 5.51ct lab-grown oval diamond

This 5.51ct lab-grown oval sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG567366087 or 567366087. Listed at 13 retailers as of October 29, 2026, with prices from $664 to $3,261, a $2,597 spread on the same certified stone. MOH London lists it at $3,261. 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

5.51
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG567366087
Dimensions14.16 × 9.99 × 6.29 mm
L/W Ratio1.42
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
14.16 mm9.99 mm5.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG567366087
Side View
Table 60.5%Crown 35.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,261 USD|Low: $664 USD|High: $5,866 USD|Avg: $2,201 USD
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
Retailer 18
November 1, 2026
Retailer 13$664 USD
Retailer 6$722 USD
Retailer 15$770 USD
Retailer 2$875 USD
Retailer 17$909 USD
Retailer 14$945 USD
Retailer 16$1,185 USD
Retailer 11$1,231 USD
Retailer 4$1,255 USD
Retailer 7$1,624 USD
Retailer 12$1,967 USD
Retailer 5$2,165 USD
Retailer 18$2,227 USD
MOH London$3,261 USD
Retailer 3$3,370 USD
Retailer 10$4,232 USD
Retailer 8$4,800 USD
Retailer 9$5,866 USD

5 data points across 18 retailers

13 retailers$664 USD to $3,261 USD

A
Cheapest Retailer
-
$664 USD
A
Retailer 2
-
$722 USD
View
A
Retailer 3
-
$770 USD
View
A
Retailer 4
-
$875 USD
£689 GBP
View
A
Retailer 5
-
$909 USD
HK$7,100 HKD
View
A
Retailer 6
-
$945 USD
View
B+
Retailer 7
-
$1,185 USD
View
B+
Retailer 8
-
$1,231 USD
£970 GBP
View
B+
Retailer 9
-
$1,255 USD
View
B
Retailer 10
-
$1,967 USD
View
B
Retailer 11
-
$2,165 USD
View
B
Retailer 12
-
$2,227 USD
View
Most Expensive
B
MOH London
LG567366087 · Oct 29
$3,261 USD
£2,568 GBP
View
12 more retailers have this diamond
Prices start from $664 USDSave up to $2,597 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
5.51ct Oval
$664 USD